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1506 lines
61 KiB
1506 lines
61 KiB
from binascii import Error
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from copy import deepcopy
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from dataclasses import dataclass
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from enum import Enum, auto
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from typing import Dict, List, Optional, Set, Tuple, Union
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from engine.types import *
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from engine.utils import (base62alp, base62uuid, enlist, get_innermost,
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get_legal_name)
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from reconstruct.storage import ColRef, Context, TableInfo
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class ast_node:
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header = []
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types = dict()
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first_order = False
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def __init__(self, parent:Optional["ast_node"], node, context:Optional[Context] = None):
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self.context = parent.context if context is None else context
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self.parent = parent
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self.sql = ''
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self.ccode = ''
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if hasattr(parent, 'datasource'):
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self.datasource = parent.datasource
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else:
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self.datasource = None
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self.init(node)
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self.produce(node)
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self.spawn(node)
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self.consume(node)
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def emit(self, code):
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self.context.emit(code)
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def add(self, code):
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self.sql += code + ' '
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def addc(self, code):
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self.ccode += code + '\n'
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name = 'null'
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def init(self, _):
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if self.parent is None:
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self.context.sql_begin()
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self.add(self.__class__.name.upper())
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def produce(self, _):
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pass
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def spawn(self, _):
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pass
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def consume(self, _):
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if self.parent is None:
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self.emit(self.sql+';\n')
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self.context.sql_end()
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from reconstruct.expr import expr, fastscan
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class SubqType(Enum):
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WITH = auto()
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FROM = auto()
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PROJECTION = auto()
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FILTER = auto()
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GROUPBY = auto()
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ORDERBY = auto()
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NONE = auto()
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class projection(ast_node):
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name = 'projection'
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first_order = 'select'
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def __init__(self,
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parent : Optional["ast_node"],
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node,
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context : Optional[Context] = None,
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force_use_spgb : bool = False,
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subq_type: SubqType = SubqType.NONE
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):
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self.force_use_spgb = force_use_spgb
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self.subq_type = subq_type
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super().__init__(parent, node, context)
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def init(self, _):
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# skip default init
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pass
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def produce(self, node):
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self.add('SELECT')
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self.has_postproc = False
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if 'select' in node:
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p = node['select']
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self.distinct = False
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elif 'select_distinct' in node:
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p = node['select_distinct']
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self.distinct = True
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if 'with' in node:
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with_table = node['with']['name']
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with_table_name = tuple(with_table.keys())[0]
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with_table_cols = tuple(with_table.values())[0]
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self.with_clause = projection(self, node['with']['value'], subq_type=SubqType.WITH)
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self.with_clause.out_table.add_alias(with_table_name)
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for new_name, col in zip(with_table_cols, self.with_clause.out_table.columns):
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col.rename(new_name)
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self.with_clause.out_table.contextname_cpp
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# in monetdb, in cxt
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else:
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self.with_clause = None
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self.limit = None
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if 'limit' in node:
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self.limit = node['limit']
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self.projections = p if type(p) is list else [p]
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if self.parent is None:
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self.context.sql_begin()
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self.postproc_fname = 'dll_' + base62uuid(6)
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self.context.postproc_begin(self.postproc_fname)
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def spawn(self, node):
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self.datasource = join(self, [], self.context) # datasource is Join instead of TableInfo
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self.assumptions = []
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if 'from' in node:
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from_clause = node['from']['table_source']
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self.datasource = join(self, from_clause)
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if 'assumptions' in node['from']:
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self.assumptions = enlist(node['from']['assumptions'])
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if self.datasource is not None:
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self.datasource_changed = True
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self.prev_datasource = self.context.datasource
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self.context.datasource = self.datasource
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if 'where' in node:
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self.where = filter(self, node['where'])
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else:
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self.where = None
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if type(self.datasource) is join:
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self.datasource.process_join_conditions()
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self.context.special_gb = self.force_use_spgb
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if 'groupby' in node: # if groupby clause contains special stuff
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self.context.special_gb |= groupby.check_special(self, node['groupby'])
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def consume(self, node):
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# deal with projections
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out_table_varname = 'out_'+base62uuid(6)
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if 'into' in node:
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out_table_name = node['into']
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else:
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out_table_name = out_table_varname
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self.out_table : TableInfo = TableInfo(out_table_name, [], self.context)
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self.out_table.contextname_cpp = out_table_varname
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cols = []
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self.col_ext : Set[ColRef]= set()
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col_exprs : List[Tuple[str, Types]] = []
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proj_map : Dict[int, List[Union[Types, int, str, expr]]]= dict()
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self.var_table = dict()
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# self.sp_refs = set()
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i = 0
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for proj in self.projections:
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compound = False
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self.datasource.rec = set()
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name = ''
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this_type = AnyT
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if type(proj) is dict or proj == '*':
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if 'value' in proj:
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e = proj['value']
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elif proj == '*':
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e = '*'
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else:
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print('unknown projection', proj)
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proj_expr = expr(self, e)
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sql_expr = expr(self, e, c_code=False)
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this_type = proj_expr.type
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name = proj_expr.sql
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compound = [proj_expr.is_compound > 1] # compound column
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proj_expr.cols_mentioned = self.datasource.rec
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alias = ''
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if 'name' in proj: # renaming column by AS keyword
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alias = proj['name']
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if not proj_expr.is_special:
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if str(proj_expr.node).strip().endswith('*'):
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_datasource = self.datasource
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if '.' in proj_expr.node:
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tbl = proj_expr.node.split('.')[0]
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if tbl in self.datasource.tables_dir:
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_datasource = self.datasource.tables_dir[tbl]
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_datasource = _datasource.all_cols(ordered = True, stripped = True)
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name = [(c.get_name()
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if self.datasource.single_table
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else c.get_full_name()
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) for c in _datasource]
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this_type = [c.type for c in _datasource]
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compound = [c.compound for c in _datasource]
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proj_expr = [expr(self, c.name) for c in _datasource]
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for pe in proj_expr:
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if pe.is_ColExpr:
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pe.cols_mentioned = {pe.raw_col}
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else:
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pe.cols_mentioned = set()
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else:
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y = lambda x:x
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count = lambda : 'count(*)'
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name = enlist(sql_expr.eval(False, y, count=count))
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this_type = enlist(this_type)
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proj_expr = enlist(proj_expr)
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for t, n, pexpr, cp in zip(this_type, name, proj_expr, compound):
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t = VectorT(t) if cp else t
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offset = len(col_exprs)
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if n not in self.var_table:
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self.var_table[n] = offset
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if pexpr.is_ColExpr and type(pexpr.raw_col) is ColRef:
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for _alias in (pexpr.raw_col.table.alias):
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self.var_table[f'{_alias}.'+n] = offset
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proj_map[i] = [t, offset, pexpr]
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col_expr = n + ' AS ' + alias if alias else n
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if alias:
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self.var_table[alias] = offset
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col_exprs.append((col_expr, t))
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i += 1
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else:
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self.context.headers.add('"./server/aggregations.h"')
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self.has_postproc = True
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if self.datasource.rec is not None:
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self.col_ext = self.col_ext.union(self.datasource.rec)
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proj_map[i] = [this_type, proj_expr.sql, proj_expr]
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i += 1
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name = enlist(name)
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disp_name = [get_legal_name(alias if alias else n) for n in name]
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this_type = enlist(this_type)
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elif type(proj) is str:
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col = self.datasource.get_cols(proj)
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this_type = col.type
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disp_name = proj
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print('Unknown behavior:', proj, 'is str')
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# name = col.name
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self.datasource.rec = None
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# TODO: Type deduction in Python
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for t, n, c in zip(this_type, disp_name, compound):
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cols.append(ColRef(t, self.out_table, None, n, len(cols), compound=c))
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self.out_table.add_cols(cols, new = False)
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self.proj_map = proj_map
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if 'groupby' in node:
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self.group_node = groupby(self, node['groupby'])
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if self.group_node.terminate:
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self.context.abandon_query()
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projection(self.parent, node, self.context, True, subq_type=self.subq_type)
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return
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if self.group_node.use_sp_gb:
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self.has_postproc = True
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else:
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self.group_node = None
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if not self.has_postproc and self.distinct:
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self.add('DISTINCT')
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self.col_ext = [c for c in self.col_ext if c.name not in self.var_table] # remove duplicates in self.var_table
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col_ext_names = [c.name for c in self.col_ext]
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self.add(', '.join([c[0] for c in col_exprs] + col_ext_names))
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_base_offset = len(col_exprs)
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for i, col in enumerate(self.col_ext):
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if col.name not in self.var_table:
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offset = i + _base_offset
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self.var_table[col.name] = offset
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for n in (col.table.alias):
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self.var_table[f'{n}.'+col.name] = offset
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def finialize(astnode:ast_node):
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if(astnode is not None):
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self.add(astnode.sql)
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finialize(self.datasource)
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finialize(self.where)
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if self.group_node and not self.group_node.use_sp_gb:
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self.add(self.group_node.sql)
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if self.col_ext or self.group_node and self.group_node.use_sp_gb:
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self.has_postproc = True
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if self.group_node and self.group_node.use_sp_gb :
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self.group_node.dedicated_glist
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...
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o = self.assumptions
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if 'orderby' in node:
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o.extend(enlist(node['orderby']))
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if o:
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self.add(orderby(self, o).sql)
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if 'outfile' in node:
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self.outfile = outfile(self, node['outfile'], sql = self.sql)
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if not self.has_postproc:
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self.sql = self.outfile.sql
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else:
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self.outfile = None
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# reset special_gb in case of subquery.
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self.context.special_gb = False
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if self.parent is None:
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self.emit(self.sql+';\n')
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else:
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# TODO: subquery, name create tmp-table from subquery w/ alias as name
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pass
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# cpp module codegen
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# extract typed-columns from result-set
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vid2cname = [0]*len(self.var_table)
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self.pyname2cname = dict()
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typenames = [c[1] for c in col_exprs] + [c.type for c in self.col_ext]
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length_name = 'len_' + base62uuid(6)
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self.context.emitc(f'auto {length_name} = server->cnt;')
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for v, idx in self.var_table.items():
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vname = get_legal_name(v) + '_' + base62uuid(3)
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self.pyname2cname[v] = vname
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self.context.emitc(f'auto {vname} = ColRef<{typenames[idx].cname}>({length_name}, server->getCol({idx}));')
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vid2cname[idx] = vname
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# Create table into context
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out_typenames = [None] * len(proj_map)
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def get_proj_name(proj_name):
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if '*' in proj_name:
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lst_names = self.datasource.get_cols(proj_name)
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return ', '.join([self.pyname2cname[n.name] for n in lst_names])
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else:
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return self.pyname2cname[proj_name]
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for key, val in proj_map.items():
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if type(val[1]) is str:
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x = True
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y = get_proj_name
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count = lambda : '0'
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if vid2cname:
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count = lambda : f'{vid2cname[0]}.size'
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val[1] = val[2].eval(x, y, count=count)
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if callable(val[1]):
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val[1] = val[1](False)
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if val[0] == LazyT:
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decltypestring = val[2].eval(y=y,gettype=True,c_code=True)(True)
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decltypestring = f'value_type<decays<decltype({decltypestring})>>'
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out_typenames[key] = decltypestring
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else:
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out_typenames[key] = val[0].cname
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if (type(val[2].udf_called) is udf and # should bulkret also be colref?
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val[2].udf_called.return_pattern == udf.ReturnPattern.elemental_return
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or
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self.group_node and
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(self.group_node.use_sp_gb and
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val[2].cols_mentioned.intersection(
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self.datasource.all_cols().difference(
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self.datasource.get_joint_cols(self.group_node.refs)
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))
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) and val[2].is_compound # compound val not in key
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# or
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# val[2].is_compound > 1
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# (not self.group_node and val[2].is_compound)
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):
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out_typenames[key] = f'vector_type<{out_typenames[key]}>'
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self.out_table.columns[key].compound = True
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outtable_col_nameslist = ', '.join([f'"{c.name}"' for c in self.out_table.columns])
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self.outtable_col_names = 'names_' + base62uuid(4)
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self.context.emitc(f'const char* {self.outtable_col_names}[] = {{{outtable_col_nameslist}}};')
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# out_typenames = [v[0].cname for v in proj_map.values()]
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self.context.emitc(f'auto {self.out_table.contextname_cpp} = new TableInfo<{",".join(out_typenames)}>("{self.out_table.table_name}", {self.outtable_col_names});')
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# TODO: Inject custom group by code here and flag them in proj_map
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# Type of UDFs? Complex UDFs, ones with static vars?
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if self.group_node is not None and self.group_node.use_sp_gb:
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gb_vartable : Dict[str, Union[str, int]] = deepcopy(self.pyname2cname)
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gb_cexprs : List[str] = []
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for key, val in proj_map.items():
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col_name = 'col_' + base62uuid(6)
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self.context.emitc(f'decltype(auto) {col_name} = {self.out_table.contextname_cpp}->get_col<{key}>();')
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gb_cexprs.append((col_name, val[2]))
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self.group_node.finalize(gb_cexprs, gb_vartable)
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else:
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for i, (key, val) in enumerate(proj_map.items()):
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if type(val[1]) is int:
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self.context.emitc(
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f'{self.out_table.contextname_cpp}->get_col<{key}>().initfrom({vid2cname[val[1]]}, "{cols[i].name}");'
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)
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else:
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# for funcs evaluate f_i(x, ...)
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self.context.emitc(f'{self.out_table.contextname_cpp}->get_col<{key}>().initfrom({val[1]}, "{cols[i].name}");')
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# print out col_is
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if 'into' not in node and self.subq_type == SubqType.NONE:
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if self.limit is None:
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self.context.emitc(f'print(*{self.out_table.contextname_cpp});')
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else:
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self.context.emitc(f'{self.out_table.contextname_cpp}->printall(" ","\\n", nullptr, nullptr, {self.limit});')
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|
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if self.outfile and self.has_postproc:
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self.outfile.finalize()
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|
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if 'into' in node:
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self.context.emitc(select_into(self, node['into']).ccode)
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self.has_postproc = True
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if not self.distinct:
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self.finalize()
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|
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def finalize(self):
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self.context.emitc(f'puts("done.");')
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|
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if self.parent is None:
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self.context.sql_end()
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if self.has_postproc:
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self.context.has_dll = True
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self.context.postproc_end(self.postproc_fname)
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else:
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|
self.context.ccode = ''
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if self.limit != 0 and not self.outfile:
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self.context.direct_output()
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|
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class select_distinct(projection):
|
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first_order = 'select_distinct'
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def consume(self, node):
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super().consume(node)
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if self.has_postproc:
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self.context.emitc(
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f'{self.out_table.table_name}->distinct();'
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)
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self.finalize()
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|
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class select_into(ast_node):
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def init(self, node):
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if isinstance(self.parent, projection):
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if self.context.has_dll:
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# has postproc put back to monetdb
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self.produce = self.produce_cpp
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else:
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self.produce = self.produce_sql
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else:
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raise ValueError('parent must be projection')
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|
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def produce_cpp(self, node):
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if not hasattr(self.parent, 'out_table'):
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raise Exception('No out_table found.')
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else:
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self.context.headers.add('"./server/table_ext_monetdb.hpp"')
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self.ccode = f'{self.parent.out_table.contextname_cpp}->monetdb_append_table(cxt->alt_server, \"{node.lower()}\");'
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|
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def produce_sql(self, node):
|
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self.sql = f' INTO {node}'
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|
|
|
|
class orderby(ast_node):
|
|
name = 'order by'
|
|
def produce(self, node):
|
|
if node is None:
|
|
self.sql = ''
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return
|
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|
|
node = enlist(node)
|
|
o_list = []
|
|
|
|
for o in node:
|
|
o_str = expr(self, o['value']).sql
|
|
if 'sort' in o and f'{o["sort"]}'.lower() == 'desc':
|
|
o_str += ' ' + 'DESC'
|
|
o_list.append(o_str)
|
|
self.add(', '.join(o_list))
|
|
|
|
|
|
class scan(ast_node):
|
|
class Position(Enum):
|
|
init = auto()
|
|
front = auto()
|
|
body = auto()
|
|
back = auto()
|
|
fin = auto()
|
|
# TODO: use this for positions for scanner
|
|
class LoopStyle(Enum):
|
|
forloop = auto()
|
|
foreach = auto()
|
|
|
|
name = 'scan'
|
|
def __init__(self, parent: "ast_node", node, loop_style = 'for', context: Context = None, const = False, it_name = None):
|
|
self.it_var = it_name
|
|
self.const = "const " if const else ""
|
|
self.loop_style = loop_style
|
|
super().__init__(parent, node, context)
|
|
|
|
def init(self, _):
|
|
self.it_var = self.context.get_scan_var() if not self.it_var else self.it_var
|
|
self.datasource = self.context.datasource
|
|
self.initializers = ''
|
|
self.start = ''
|
|
self.front = ''
|
|
self.body = ''
|
|
self.end = '}'
|
|
self.parent.context.scans.append(self)
|
|
|
|
def produce(self, node):
|
|
if self.loop_style == 'for_each':
|
|
self.colref = node
|
|
self.start += f'for ({self.const}auto& {self.it_var} : {node}) {{\n'
|
|
else:
|
|
self.start += f"for (uint32_t {self.it_var} = 0; {self.it_var} < {node}; ++{self.it_var}){{\n"
|
|
|
|
def add(self, stmt, position = "body"):
|
|
if position == "body":
|
|
self.body += stmt + '\n'
|
|
elif position == "init":
|
|
self.initializers += stmt + '\n'
|
|
else:
|
|
self.front += stmt + '\n'
|
|
|
|
def finalize(self):
|
|
self.context.remove_scan(self, self.initializers + self.start + self.front + self.body + self.end)
|
|
|
|
class groupby_c(ast_node):
|
|
name = '_groupby'
|
|
def init(self, node : List[Tuple[expr, Set[ColRef]]]):
|
|
self.proj : projection = self.parent
|
|
self.glist : List[Tuple[expr, Set[ColRef]]] = node
|
|
return super().init(node)
|
|
|
|
def produce(self, node : List[Tuple[expr, Set[ColRef]]]):
|
|
self.context.headers.add('"./server/hasher.h"')
|
|
self.context.headers.add('unordered_map')
|
|
self.group = 'g' + base62uuid(7)
|
|
self.group_type = 'record_type' + base62uuid(7)
|
|
self.datasource = self.proj.datasource
|
|
self.scanner = None
|
|
self.datasource.rec = set()
|
|
|
|
g_contents = ''
|
|
g_contents_list = []
|
|
first_col = ''
|
|
scanner_itname = self.context.get_scan_var()
|
|
for g in self.glist:
|
|
e = expr(self, g[0].node, c_code=True)
|
|
g_str = e.eval(c_code = True, y = lambda c: self.proj.pyname2cname[c])
|
|
# if v is compound expr, create tmp cols
|
|
if not e.is_ColExpr:
|
|
self.context.headers.add('"./server/aggregations.h"')
|
|
tmpcol = 't' + base62uuid(7)
|
|
self.context.emitc(f'auto {tmpcol} = {g_str};')
|
|
e = tmpcol
|
|
else:
|
|
e = g_str
|
|
g_contents_list.append(e)
|
|
first_col = g_contents_list[0]
|
|
g_contents_decltype = [f'decays<decltype({c})::value_t>' for c in g_contents_list]
|
|
g_contents = ', '.join(
|
|
[f'{c}[{scanner_itname}]' for c in g_contents_list]
|
|
)
|
|
self.context.emitc(f'typedef record<{",".join(g_contents_decltype)}> {self.group_type};')
|
|
self.context.emitc(f'unordered_map<{self.group_type}, vector_type<uint32_t>, '
|
|
f'transTypes<{self.group_type}, hasher>> {self.group};')
|
|
self.n_grps = len(self.glist)
|
|
self.scanner = scan(self, first_col + '.size', it_name=scanner_itname)
|
|
self.scanner.add(f'{self.group}[forward_as_tuple({g_contents})].emplace_back({self.scanner.it_var});')
|
|
|
|
def consume(self, _):
|
|
self.scanner.finalize()
|
|
|
|
# def deal_with_assumptions(self, assumption:assumption, out:TableInfo):
|
|
# gscanner = scan(self, self.group)
|
|
# val_var = 'val_'+base62uuid(7)
|
|
# gscanner.add(f'auto &{val_var} = {gscanner.it_var}.second;')
|
|
# gscanner.add(f'{self.datasource.cxt_name}->order_by<{assumption.result()}>(&{val_var});')
|
|
# gscanner.finalize()
|
|
|
|
def finalize(self, cexprs : List[Tuple[str, expr]], var_table : Dict[str, Union[str, int]]):
|
|
gscanner = scan(self, self.group, loop_style = 'for_each')
|
|
key_var = 'key_'+base62uuid(7)
|
|
val_var = 'val_'+base62uuid(7)
|
|
|
|
gscanner.add(f'auto &{key_var} = {gscanner.it_var}.first;', position = 'front')
|
|
gscanner.add(f'auto &{val_var} = {gscanner.it_var}.second;', position = 'front')
|
|
len_var = None
|
|
def define_len_var():
|
|
nonlocal len_var
|
|
if len_var is None:
|
|
len_var = 'len_'+base62uuid(7)
|
|
gscanner.add(f'auto &{len_var} = {val_var}.size;', position = 'front')
|
|
|
|
def get_key_idx (varname : str):
|
|
ex = expr(self, varname)
|
|
joint_cols = set()
|
|
if ex.is_ColExpr and ex.raw_col:
|
|
joint_cols = self.datasource.get_joint_cols([ex.raw_col])
|
|
for i, g in enumerate(self.glist):
|
|
if (varname == g[0].eval()) or (g[0].is_ColExpr and g[0].raw_col and
|
|
g[0].raw_col in joint_cols):
|
|
return i
|
|
return var_table[varname]
|
|
|
|
def get_var_names (varname : str):
|
|
var = get_key_idx(varname)
|
|
if type(var) is str:
|
|
return f'{var}[{val_var}]'
|
|
else:
|
|
return f'get<{var}>({key_var})'
|
|
|
|
def get_var_names_ex (varex : expr):
|
|
sql_code = varex.eval(c_code = False)
|
|
if (sql_code in var_table):
|
|
return get_var_names(sql_code)
|
|
else:
|
|
return varex.eval(c_code=True, y = get_var_names,
|
|
materialize_builtin = materialize_builtin,
|
|
count=lambda:f'{val_var}.size')
|
|
|
|
for ce in cexprs:
|
|
ex = ce[1]
|
|
materialize_builtin = {}
|
|
if type(ex.udf_called) is udf:
|
|
if '_builtin_len' in ex.udf_called.builtin_used:
|
|
define_len_var()
|
|
materialize_builtin['_builtin_len'] = len_var
|
|
if '_builtin_ret' in ex.udf_called.builtin_used:
|
|
define_len_var()
|
|
gscanner.add(f'{ce[0]}.emplace_back({len_var});\n')
|
|
materialize_builtin['_builtin_ret'] = f'{ce[0]}.back()'
|
|
gscanner.add(f'{ex.eval(c_code = True, y=get_var_names, materialize_builtin = materialize_builtin)};\n')
|
|
continue
|
|
gscanner.add(f'{ce[0]}.emplace_back({get_var_names_ex(ex)});\n')
|
|
|
|
gscanner.finalize()
|
|
|
|
self.datasource.groupinfo = None
|
|
|
|
|
|
class groupby(ast_node):
|
|
name = 'group by'
|
|
|
|
@staticmethod
|
|
def check_special(parent, node):
|
|
node = enlist(node)
|
|
for g in node:
|
|
if ('value' in g and
|
|
expr(parent, g['value']).is_special
|
|
):
|
|
return True
|
|
return False
|
|
|
|
def init(self, _):
|
|
self.terminate = False
|
|
super().init(_)
|
|
|
|
def produce(self, node):
|
|
if not isinstance(self.parent, projection):
|
|
raise ValueError('groupby can only be used in projection')
|
|
|
|
node = enlist(node)
|
|
o_list = []
|
|
self.refs = set()
|
|
self.gb_cols = set()
|
|
# dedicated_glist -> cols populated for special group by
|
|
self.dedicated_glist : List[Tuple[expr, Set[ColRef]]] = []
|
|
self.use_sp_gb = self.parent.force_use_spgb
|
|
for g in node:
|
|
self.datasource.rec = set()
|
|
g_expr = expr(self, g['value'])
|
|
self.use_sp_gb = self.use_sp_gb or g_expr.is_special
|
|
refs : Set[ColRef] = self.datasource.rec
|
|
self.datasource.rec = None
|
|
if self.parent.col_ext:
|
|
this_sp_ref = refs.difference(self.parent.col_ext)
|
|
self.use_sp_gb = self.use_sp_gb or len(this_sp_ref) > 0
|
|
self.refs.update(refs)
|
|
self.dedicated_glist.append((g_expr, refs))
|
|
g_str = g_expr.eval(c_code = False)
|
|
if 'sort' in g and f'{g["sort"]}'.lower() == 'desc':
|
|
g_str = g_str + ' ' + 'DESC'
|
|
o_list.append(g_str)
|
|
if g_expr.is_ColExpr:
|
|
self.gb_cols.add(g_expr.raw_col)
|
|
else:
|
|
self.gb_cols.add(g_expr.sql)
|
|
|
|
for projs in self.parent.proj_map.values():
|
|
if self.use_sp_gb:
|
|
break
|
|
if (projs[2].is_compound and
|
|
not ((projs[2].is_ColExpr and projs[2].raw_col in self.gb_cols) or
|
|
projs[2].sql in self.gb_cols)
|
|
) and (not self.parent.force_use_spgb):
|
|
self.use_sp_gb = True
|
|
break
|
|
|
|
if self.use_sp_gb and not self.parent.force_use_spgb:
|
|
self.terminate = True
|
|
return
|
|
if not self.use_sp_gb:
|
|
self.dedicated_gb = None
|
|
self.add(', '.join(o_list))
|
|
else:
|
|
for l in self.dedicated_glist:
|
|
# l_exist = l[1].difference(self.parent.col_ext)
|
|
# for l in l_exist:
|
|
# self.parent.var_table.
|
|
self.parent.col_ext.update(l[1])
|
|
|
|
def finalize(self, cexprs : List[Tuple[str, expr]], var_table : Dict[str, Union[str, int]]):
|
|
if self.use_sp_gb:
|
|
self.dedicated_gb = groupby_c(self.parent, self.dedicated_glist)
|
|
self.dedicated_gb.finalize(cexprs, var_table)
|
|
|
|
|
|
class join(ast_node):
|
|
name = 'join'
|
|
|
|
def get_joint_cols(self, cols : List[ColRef]):
|
|
joint_cols = set(cols)
|
|
for col in cols:
|
|
joint_cols |= self.joint_cols.get(col, set())
|
|
return joint_cols
|
|
|
|
def strip_joint_cols(self, cols : Set[ColRef]):
|
|
stripped = type(cols)(cols)
|
|
for c in cols:
|
|
if c in stripped:
|
|
jc = self.get_joint_cols([c])
|
|
for j in jc:
|
|
if j != c and j in stripped:
|
|
stripped.remove(j)
|
|
return stripped
|
|
|
|
def init(self, _):
|
|
self.joins : List[join] = []
|
|
self.tables : List[TableInfo] = []
|
|
self.tables_dir = dict()
|
|
self.rec = None
|
|
self.top_level = self.parent and isinstance(self.parent, projection)
|
|
self.have_sep = False
|
|
self.joint_cols : Dict[ColRef, Set]= dict() # columns that are joined with this column
|
|
self.children : Set(join) = {}
|
|
self.join_conditions = []
|
|
# self.tmp_name = 'join_' + base62uuid(4)
|
|
# self.datasource = TableInfo(self.tmp_name, [], self.context)
|
|
|
|
def append(self, tbls, __alias = ''):
|
|
alias = lambda t : t + ' ' + __alias if len(__alias) else t
|
|
if type(tbls) is join:
|
|
self.joins.append((alias(tbls.__str__()), tbls.have_sep))
|
|
self.tables += tbls.tables
|
|
self.tables_dir = {**self.tables_dir, **tbls.tables_dir}
|
|
self.join_conditions += tbls.join_conditions
|
|
|
|
elif type(tbls) is TableInfo:
|
|
self.joins.append((alias(tbls.table_name), False))
|
|
self.tables.append(tbls)
|
|
self.tables_dir[tbls.table_name] = tbls
|
|
for a in tbls.alias:
|
|
self.tables_dir[a] = tbls
|
|
|
|
elif type(tbls) is projection:
|
|
self.joins.append((alias(tbls.finalize()), False))
|
|
|
|
def produce(self, node):
|
|
if type(node) is list:
|
|
for d in node:
|
|
self.append(join(self, d))
|
|
|
|
elif type(node) is dict:
|
|
alias = ''
|
|
if 'value' in node:
|
|
table_name = node['value']
|
|
tbl = None
|
|
if 'name' in node:
|
|
alias = node['name']
|
|
if type(table_name) is dict:
|
|
if 'select' in table_name:
|
|
# TODO: subquery, create and register TableInfo in projection
|
|
tbl = projection(self, table_name).finalize()
|
|
else:
|
|
tbl = self.context.tables_byname[table_name]
|
|
if 'name' in node:
|
|
tbl.add_alias(node['name'])
|
|
self.append(tbl, alias)
|
|
else:
|
|
keys : List[str] = list(node.keys())
|
|
if keys[0].lower().endswith('join'):
|
|
self.have_sep = True
|
|
j = join(self, node[keys[0]])
|
|
self.tables += j.tables
|
|
self.tables_dir = {**self.tables_dir, **j.tables_dir}
|
|
self.join_conditions += j.join_conditions
|
|
_tbl_union = _tmp_join_union(self.context, self.parent, self)
|
|
tablename = f' {keys[0]} {j}'
|
|
if len(keys) > 1 :
|
|
jcond = node[keys[1]]
|
|
sqoute = '\''
|
|
if type(jcond) is list:
|
|
_ex = [expr(_tbl_union, j) for j in jcond]
|
|
else:
|
|
_ex = expr(_tbl_union, jcond)
|
|
if keys[1].lower() == 'on': # postpone join condition evaluation after consume
|
|
self.join_conditions += _ex.join_conditions
|
|
tablename += f" ON {_ex.eval().replace(sqoute, '')}"
|
|
elif keys[1].lower() == 'using':
|
|
_ex = enlist(_ex)
|
|
lst_jconds = []
|
|
for _e in _ex:
|
|
if _e.is_ColExpr:
|
|
cl = _e.raw_col
|
|
cr = j.get_cols(_e.raw_col.name)
|
|
self.join_conditions.append( (cl, cr) )
|
|
lst_jconds += [f'{cl.get_full_name()} = {cr.get_full_name()}']
|
|
tablename += f' ON {" and ".join(lst_jconds)}'
|
|
|
|
if keys[0].lower().startswith('natural'):
|
|
ltbls : List[TableInfo] = []
|
|
if isinstance(self.parent, join):
|
|
ltbls = self.parent.tables
|
|
elif isinstance(self.parent, TableInfo):
|
|
ltbls = [self.parent]
|
|
for tl in ltbls:
|
|
for cl in tl.columns:
|
|
cr = j.get_cols(cl.name)
|
|
if cr:
|
|
self.join_conditions.append( (cl, cr) )
|
|
self.joins.append((tablename, self.have_sep))
|
|
|
|
|
|
elif type(node) is str:
|
|
if node in self.context.tables_byname:
|
|
self.append(self.context.tables_byname[node])
|
|
else:
|
|
print(f'Error: table {node} not found.')
|
|
|
|
def get_cols(self, colExpr: str) -> Optional[ColRef]:
|
|
if '*' in colExpr:
|
|
if colExpr == '*':
|
|
return self.all_cols(ordered = True, stripped = True)
|
|
elif colExpr.endswith('.*'):
|
|
tbl = colExpr.split('.')
|
|
if len(tbl) > 2:
|
|
raise KeyError(f'Invalid expression: {colExpr}')
|
|
if tbl[0] in self.tables_dir:
|
|
tbl : TableInfo= self.tables_dir[tbl[0]]
|
|
return tbl.all_cols(ordered = True)
|
|
else:
|
|
raise KeyError(f'Invalid table name: {colExpr}')
|
|
for t in self.tables:
|
|
if colExpr in t.columns_byname:
|
|
col = t.columns_byname[colExpr]
|
|
if type(self.rec) is set:
|
|
self.rec.add(col)
|
|
return col
|
|
return None
|
|
|
|
def parse_col_names(self, colExpr:str) -> ColRef:
|
|
parsedColExpr = colExpr.split('.')
|
|
if len(parsedColExpr) <= 1:
|
|
return self.get_cols(colExpr)
|
|
else:
|
|
datasource = self.tables_dir[parsedColExpr[0]]
|
|
if datasource is None:
|
|
raise ValueError(f'Table name/alias not defined{parsedColExpr[0]}')
|
|
else:
|
|
datasource.rec = self.rec
|
|
ret = datasource.parse_col_names(parsedColExpr[1])
|
|
datasource.rec = None
|
|
return ret
|
|
|
|
@property
|
|
def single_table(self):
|
|
return len(self.tables) == 1
|
|
|
|
# @property
|
|
def all_cols(self, ordered = False, stripped = True):
|
|
from ordered_set import OrderedSet
|
|
ret = OrderedSet() if ordered else set()
|
|
for table in self.tables:
|
|
rec = table.rec
|
|
table.rec = self.rec
|
|
ret.update(table.all_cols(ordered = ordered))
|
|
table.rec = rec
|
|
if stripped:
|
|
return self.strip_joint_cols(ret)
|
|
return ret
|
|
|
|
# TODO: join condition awareness
|
|
def process_join_conditions(self):
|
|
# This is done after both from
|
|
# and where clause are processed
|
|
for j in self.join_conditions:
|
|
l = j[0]
|
|
r = j[1]
|
|
for k in (0, 1):
|
|
if j[k] not in self.joint_cols:
|
|
self.joint_cols[j[k]] = set([l, r])
|
|
jr = self.joint_cols[r]
|
|
jl = self.joint_cols[l]
|
|
if jl != jr:
|
|
jl |= jr
|
|
for c, jc in self.joint_cols.items():
|
|
if jc == jr:
|
|
self.joint_cols[c] = jl
|
|
|
|
# print(self.join_conditions)
|
|
# print(self.joint_cols)
|
|
|
|
def consume(self, node):
|
|
self.sql = ''
|
|
for j in self.joins:
|
|
if not self.sql or j[1]:
|
|
self.sql += j[0] # using JOIN keyword
|
|
else:
|
|
self.sql += ', ' + j[0] # using comma
|
|
|
|
if node and self.sql and self.top_level:
|
|
self.sql = ' FROM ' + self.sql
|
|
return super().consume(node)
|
|
|
|
def __str__(self):
|
|
return self.sql
|
|
def __repr__(self):
|
|
return self.__str__()
|
|
|
|
class _tmp_join_union(join):
|
|
name = '__tmp_join_union'
|
|
|
|
def __init__(self, context, l: join, r: join):
|
|
self.tables = l.tables + r.tables
|
|
self.tables_dir = {**l.tables_dir, **r.tables_dir}
|
|
self.datasource = self
|
|
self.context = context
|
|
self.parent = self
|
|
self.rec = None
|
|
|
|
class filter(ast_node):
|
|
name = 'where'
|
|
def produce(self, node):
|
|
filter_expr = expr(self, node)
|
|
self.add(filter_expr.sql)
|
|
self.datasource.join_conditions += filter_expr.join_conditions
|
|
|
|
class create_table(ast_node):
|
|
name = 'create_table'
|
|
first_order = name
|
|
def init(self, node):
|
|
node = node[self.name]
|
|
if 'query' in node:
|
|
if 'name' not in node:
|
|
raise ValueError("Table name not specified")
|
|
projection_node = node['query']
|
|
projection_node['into'] = node['name']
|
|
proj_cls = (select_distinct
|
|
if 'select_distinct' in projection_node
|
|
else projection)
|
|
proj_cls(None, projection_node, self.context)
|
|
self.produce = lambda *_: None
|
|
self.spawn = lambda *_: None
|
|
self.consume = lambda *_: None
|
|
return
|
|
if self.parent is None:
|
|
self.context.sql_begin()
|
|
self.sql = 'CREATE TABLE '
|
|
|
|
def produce(self, node):
|
|
ct = node[self.name]
|
|
tbl = self.context.add_table(ct['name'], ct['columns'])
|
|
self.sql = f'CREATE TABLE IF NOT EXISTS {tbl.table_name}('
|
|
columns = []
|
|
for c in tbl.columns:
|
|
columns.append(f'{c.name} {c.type.sqlname}')
|
|
self.sql += ', '.join(columns)
|
|
self.sql += ')'
|
|
if self.context.use_columnstore:
|
|
self.sql += ' engine=ColumnStore'
|
|
|
|
class drop(ast_node):
|
|
name = 'drop'
|
|
first_order = name
|
|
def produce(self, node):
|
|
node = node['drop']
|
|
tbl_name = node['table']
|
|
if tbl_name in self.context.tables_byname:
|
|
tbl_obj : TableInfo = self.context.tables_byname[tbl_name]
|
|
for a in tbl_obj.alias:
|
|
self.context.tables_byname.pop(a, None)
|
|
# TODO: delete in postproc engine
|
|
self.context.tables_byname.pop(tbl_name, None)
|
|
self.context.tables.discard(tbl_obj)
|
|
self.sql += 'TABLE IF EXISTS ' + tbl_name
|
|
return
|
|
|
|
elif 'if_exists' not in node or not node['if_exists']:
|
|
print(f'Error: table {tbl_name} not found.')
|
|
self.sql = ''
|
|
|
|
class insert(ast_node):
|
|
name = 'insert'
|
|
first_order = name
|
|
def init(self, node):
|
|
if 'query' in node:
|
|
values = node['query']
|
|
complex_query_kw = ['from', 'where', 'groupby', 'having', 'orderby', 'limit']
|
|
if any([kw in values for kw in complex_query_kw]):
|
|
values['into'] = node['insert']
|
|
proj_cls = (select_distinct
|
|
if 'select_distinct' in values
|
|
else projection)
|
|
proj_cls(None, values, self.context)
|
|
self.produce = lambda*_:None
|
|
self.spawn = lambda*_:None
|
|
self.consume = lambda*_:None
|
|
else:
|
|
super().init(node)
|
|
|
|
def produce(self, node):
|
|
keys = []
|
|
if 'query' in node:
|
|
if 'select' in node['query']:
|
|
values = enlist(node['query']['select'])
|
|
if 'columns' in node:
|
|
keys = node['columns']
|
|
values = [v['value'] for v in values]
|
|
|
|
elif 'union_all' in node['query']:
|
|
values = [[v['select']['value']] for v in node['query']['union_all']]
|
|
if 'columns' in node:
|
|
keys = node['columns']
|
|
else:
|
|
values = enlist(node['values'])
|
|
_vals = []
|
|
for v in values:
|
|
if isinstance(v, dict):
|
|
keys = v.keys()
|
|
v = list(v.values())
|
|
_vals.append(v)
|
|
values = _vals
|
|
|
|
keys = f'({", ".join(keys)})' if keys else ''
|
|
tbl = node['insert']
|
|
self.sql = f'INSERT INTO {tbl}{keys} VALUES'
|
|
# if len(values) != table.n_cols:
|
|
# raise ValueError("Column Mismatch")
|
|
values = [values] if isinstance(values, list) and not isinstance(values[0], list) else values
|
|
list_values = []
|
|
for l in values:
|
|
inner_list_values = []
|
|
for s in enlist(l):
|
|
if type(s) is dict and 'value' in s:
|
|
s = s['value']
|
|
inner_list_values.append(f"{get_innermost(s)}")
|
|
list_values.append(f"({', '.join(inner_list_values)})")
|
|
|
|
self.sql += ', '.join(list_values)
|
|
|
|
|
|
class load(ast_node):
|
|
name="load"
|
|
first_order = name
|
|
def init(self, node):
|
|
self.module = False
|
|
if node['load']['file_type'] == 'module':
|
|
self.produce = self.produce_module
|
|
self.module = True
|
|
elif 'complex' in node['load']:
|
|
self.produce = self.produce_cpp
|
|
self.consume = lambda *_: None
|
|
elif self.context.dialect == 'MonetDB':
|
|
self.produce = self.produce_monetdb
|
|
else:
|
|
self.produce = self.produce_aq
|
|
if self.parent is None:
|
|
self.context.sql_begin()
|
|
|
|
def produce_module(self, node):
|
|
# create command for exec engine -> done
|
|
# create c++ stub
|
|
# create dummy udf obj for parsing
|
|
# def decode_type(ty : str) -> str:
|
|
# ret = ''
|
|
# back = ''
|
|
# while(ty.startswith('vec')):
|
|
# ret += 'ColRef<'
|
|
# back += '>'
|
|
# ty = ty[3:]
|
|
# ret += ty
|
|
# return ret + back
|
|
node = node['load']
|
|
file = node['file']['literal']
|
|
self.context.queries.append(f'M{file}')
|
|
self.module_name = file
|
|
self.functions = {}
|
|
if 'funcs' in node:
|
|
for f in enlist(node['funcs']):
|
|
fname = f['fname']
|
|
self.context.queries.append(f'F{fname}')
|
|
ret_type = VoidT
|
|
if 'ret_type' in f:
|
|
ret_type = Types.decode(f['ret_type'], vector_type='vector_type')
|
|
nargs = 0
|
|
arglist = ''
|
|
if 'vars' in f:
|
|
arglist = []
|
|
for v in enlist(f['vars']):
|
|
arglist.append(f'{Types.decode(v["type"]).cname} {v["arg"]}')
|
|
nargs = len(arglist)
|
|
arglist = ', '.join(arglist)
|
|
# create c++ stub
|
|
cpp_stub = f'{"vectortype_cstorage" if isinstance(ret_type, VectorT) else ret_type.cname} (*{fname})({arglist}) = nullptr;'
|
|
self.context.module_stubs += cpp_stub + '\n'
|
|
self.context.module_map[fname] = cpp_stub
|
|
#registration for parser
|
|
self.functions[fname] = user_module_function(fname, nargs, ret_type, self.context)
|
|
self.context.module_init_loc = len(self.context.queries)
|
|
|
|
def produce_aq(self, node):
|
|
node = node['load']
|
|
s1 = 'LOAD DATA INFILE '
|
|
s2 = 'INTO TABLE '
|
|
s3 = 'FIELDS TERMINATED BY '
|
|
self.sql = f'{s1} \"{node["file"]["literal"]}\" {s2} {node["table"]}'
|
|
if 'term' in node:
|
|
self.sql += f' {s3} \"{node["term"]["literal"]}\"'
|
|
|
|
def produce_monetdb(self, node):
|
|
node = node['load']
|
|
s1 = f'COPY OFFSET 2 INTO {node["table"]} FROM '
|
|
s2 = ' ON SERVER '
|
|
s3 = ' USING DELIMITERS '
|
|
import os
|
|
p = os.path.abspath(node['file']['literal']).replace('\\', '/')
|
|
|
|
self.sql = f'{s1} \'{p}\' {s2} '
|
|
if 'term' in node:
|
|
self.sql += f' {s3} \'{node["term"]["literal"]}\''
|
|
|
|
def produce_cpp(self, node):
|
|
self.context.has_dll = True
|
|
self.context.headers.add('"csv.h"')
|
|
node = node['load']
|
|
self.postproc_fname = 'ld_' + base62uuid(5)
|
|
self.context.postproc_begin(self.postproc_fname)
|
|
|
|
table:TableInfo = self.context.tables_byname[node['table']]
|
|
self.sql = F"SELECT {', '.join([c.name for c in table.columns])} FROM {table.table_name};"
|
|
self.emit(self.sql+';\n')
|
|
self.context.sql_end()
|
|
length_name = 'len_' + base62uuid(6)
|
|
self.context.emitc(f'auto {length_name} = server->cnt;')
|
|
|
|
out_typenames = [t.type.cname for t in table.columns]
|
|
outtable_col_nameslist = ', '.join([f'"{c.name}"' for c in table.columns])
|
|
|
|
self.outtable_col_names = 'names_' + base62uuid(4)
|
|
self.context.emitc(f'const char* {self.outtable_col_names}[] = {{{outtable_col_nameslist}}};')
|
|
|
|
self.out_table = 'tbl_' + base62uuid(4)
|
|
self.context.emitc(f'auto {self.out_table} = new TableInfo<{",".join(out_typenames)}>("{table.table_name}", {self.outtable_col_names});')
|
|
for i, c in enumerate(table.columns):
|
|
c.cxt_name = 'c_' + base62uuid(6)
|
|
self.context.emitc(f'decltype(auto) {c.cxt_name} = {self.out_table}->get_col<{i}>();')
|
|
self.context.emitc(f'{c.cxt_name}.initfrom({length_name}, server->getCol({i}), "{table.columns[i].name}");')
|
|
csv_reader_name = 'csv_reader_' + base62uuid(6)
|
|
col_types = [c.type.cname for c in table.columns]
|
|
col_tmp_names = ['tmp_'+base62uuid(8) for _ in range(len(table.columns))]
|
|
#col_names = ','.join([f'"{c.name}"' for c in table.columns])
|
|
term_field = ',' if 'term' not in node else node['term']['literal']
|
|
term_ele = ';' if 'ele' not in node else node['ele']['literal']
|
|
self.context.emitc(f'AQCSVReader<{len(col_types)}, \'{term_field.strip()[0]}\', \'{term_ele.strip()[0]}\'> {csv_reader_name}("{node["file"]["literal"]}");')
|
|
# self.context.emitc(f'{csv_reader_name}.read_header(io::ignore_extra_column, {col_names});')
|
|
self.context.emitc(f'{csv_reader_name}.next_line();')
|
|
|
|
for t, n in zip(col_types, col_tmp_names):
|
|
self.context.emitc(f'{t} {n};')
|
|
self.context.emitc(f'while({csv_reader_name}.read_row({",".join(col_tmp_names)})) {{ \n')
|
|
for i, c in enumerate(table.columns):
|
|
# self.context.emitc(f'print({col_tmp_names[i]});')
|
|
self.context.emitc(f'{c.cxt_name}.emplace_back({col_tmp_names[i]});')
|
|
|
|
self.context.emitc('}')
|
|
# self.context.emitc(f'print(*{self.out_table});')
|
|
self.context.emitc(f'{self.out_table}->monetdb_append_table(cxt->alt_server, "{table.table_name}");')
|
|
|
|
self.context.postproc_end(self.postproc_fname)
|
|
|
|
class outfile(ast_node):
|
|
name="_outfile"
|
|
def __init__(self, parent, node, context = None, *, sql = None):
|
|
self.node = node
|
|
self.sql = sql if sql else ''
|
|
super().__init__(parent, node, context)
|
|
|
|
def init(self, _):
|
|
assert(isinstance(self.parent, projection))
|
|
if not self.parent.has_postproc:
|
|
if self.context.dialect == 'MonetDB':
|
|
self.produce = self.produce_monetdb
|
|
else:
|
|
self.produce = self.produce_aq
|
|
|
|
return super().init(_)
|
|
def produce_aq(self, node):
|
|
filename = node['loc']['literal'] if 'loc' in node else node['literal']
|
|
self.sql += f'INTO OUTFILE "{filename}"'
|
|
if 'term' in node:
|
|
self.sql += f' FIELDS TERMINATED BY \"{node["term"]["literal"]}\"'
|
|
|
|
def produce_monetdb(self, node):
|
|
filename = node['loc']['literal'] if 'loc' in node else node['literal']
|
|
import os
|
|
p = os.path.abspath('.').replace('\\', '/') + '/' + filename
|
|
self.sql = f'COPY {self.parent.sql} INTO \'{p}\''
|
|
d = ','
|
|
e = '\\n'
|
|
if 'term' in node:
|
|
d = node['term']['literal']
|
|
self.sql += f' delimiters \'{d}\', \'{e}\''
|
|
|
|
def finalize(self):
|
|
filename = self.node['loc']['literal'] if 'loc' in self.node else self.node['literal']
|
|
sep = ',' if 'term' not in self.node else self.node['term']['literal']
|
|
file_pointer = 'fp_' + base62uuid(6)
|
|
self.addc(f'FILE* {file_pointer} = fopen("{filename}", "w");')
|
|
self.addc(f'{self.parent.out_table.contextname_cpp}->printall("{sep}", "\\n", nullptr, {file_pointer});')
|
|
self.addc(f'fclose({file_pointer});')
|
|
self.context.ccode += self.ccode
|
|
|
|
class udf(ast_node):
|
|
name = 'udf'
|
|
first_order = name
|
|
@staticmethod
|
|
def try_init_udf(context : Context):
|
|
if context.udf is None:
|
|
context.udf = '/*UDF Start*/\n'
|
|
context.headers.add('\"./udf.hpp\"')
|
|
|
|
@dataclass
|
|
class builtin_var:
|
|
enabled : bool = False
|
|
_type : Types = AnyT
|
|
all = ('_builtin_len', '_builtin_ret')
|
|
|
|
def decltypecall(self, c_code = False, *args):
|
|
from engine.types import fn_behavior
|
|
class dummy:
|
|
def __init__(self, name):
|
|
self.cname = name + '_gettype'
|
|
self.sqlname = self.cname
|
|
return fn_behavior(dummy(self.cname), c_code, *args)
|
|
|
|
def __call__(self, c_code = False, *args):
|
|
from engine.types import fn_behavior
|
|
builtin_args = [f'{{{n}()}}' for n, v in self.builtin.items() if v.enabled]
|
|
return fn_behavior(self, c_code, *args, *builtin_args)
|
|
|
|
def return_type(self, *_ : Types):
|
|
return LazyT
|
|
|
|
def init(self, _):
|
|
self.builtin : Dict[str, udf.builtin_var] = {
|
|
'_builtin_len' : udf.builtin_var(False, UIntT),
|
|
'_builtin_ret' : udf.builtin_var(False, Types(
|
|
255, name = 'generic_ref', cname = 'auto&'
|
|
))
|
|
}
|
|
self.var_table = {}
|
|
self.args = []
|
|
udf.try_init_udf(self.context)
|
|
self.vecs = set()
|
|
self.code_list = []
|
|
self.builtin_used = None
|
|
|
|
def add(self, *code):
|
|
ccode = ''
|
|
for c in code:
|
|
if type(c) is str:
|
|
ccode += c
|
|
else:
|
|
self.code_list.append(ccode)
|
|
self.code_list.append(c)
|
|
ccode = ''
|
|
if ccode:
|
|
self.code_list.append(ccode)
|
|
|
|
|
|
def produce(self, node):
|
|
from engine.utils import check_legal_name, get_legal_name
|
|
node = node[self.name]
|
|
# register udf
|
|
self.agg = 'Agg' in node
|
|
self.cname = get_legal_name(node['fname'])
|
|
self.sqlname = self.cname
|
|
self.context.udf_map[self.cname] = self
|
|
if self.agg:
|
|
self.context.udf_agg_map[self.cname] = self
|
|
self.add(f'auto {self.cname} = [](')
|
|
|
|
def get_block(self, ind, node):
|
|
if 'stmt' in node:
|
|
old_ind = ind
|
|
ind += '\t'
|
|
next_stmt = enlist(node['stmt'])
|
|
if len(next_stmt) > 1:
|
|
self.add(f' {{\n')
|
|
self.get_stmt(ind ,next_stmt)
|
|
self.add(f'{old_ind}}}\n')
|
|
else:
|
|
self.get_stmt(ind, next_stmt)
|
|
|
|
def get_cname(self, x:str):
|
|
return self.var_table[x]
|
|
|
|
def get_assignment(self, ind, node, *, types = 'auto', sep = ';\n'):
|
|
var_ex = expr(self, node['var'], c_code=True, supress_undefined = True)
|
|
ex = expr(self, node['expr'], c_code=True)
|
|
var = var_ex.eval(y=self.get_cname)
|
|
if var in self.var_table or hasattr(var_ex, 'builtin_var'):
|
|
op = '='
|
|
if 'op' in node and node['op'] != ':=':
|
|
op = node['op']
|
|
e = ex.eval(y=self.get_cname)
|
|
def assign_behavior(decltypestr = False):
|
|
nonlocal ind, var, op, e, sep
|
|
v = var(decltypestr) if callable(var) else var
|
|
_e = e(decltypestr) if callable(e) else e
|
|
if v == '_builtin_ret':
|
|
return f'{ind}return {_e}{sep}'
|
|
elif '_builtin_ret' not in _e:
|
|
return f'{ind}{v} {op} {_e}{sep}'
|
|
else:
|
|
return ''
|
|
self.add(assign_behavior)
|
|
else:
|
|
cvar = get_legal_name(var)
|
|
self.var_table[var] = cvar
|
|
self.add(f'{ind}{types} {cvar} = ', ex.eval(y=self.get_cname), sep)
|
|
|
|
def get_stmt(self, ind, node):
|
|
node = enlist(node)
|
|
for n in node:
|
|
if 'if' in n:
|
|
_ifnode = n['if']
|
|
self.add(f'{ind}if(', expr(self, _ifnode["cond"]).eval(y=self.get_cname), ')')
|
|
if 'stmt' in _ifnode:
|
|
self.get_block(ind, _ifnode)
|
|
else:
|
|
self.add('\n')
|
|
self.get_stmt(ind + '\t', _ifnode)
|
|
if 'elif' in _ifnode:
|
|
for e in n['elif']:
|
|
self.add(f'{ind}else if(', expr(self, e["cond"]).eval(y=self.get_cname), ')')
|
|
self.get_block(ind, e)
|
|
if 'else' in _ifnode:
|
|
self.add(f'{ind}else ')
|
|
self.get_block(ind, _ifnode['else'])
|
|
|
|
elif 'for' in n:
|
|
_fornode = n['for']
|
|
defs = _fornode['defs']
|
|
self.add(f'{ind}for({"auto " if len(enlist(defs["op"])) != 0 else ";"}')
|
|
def get_inline_assignments(node, end = '; '):
|
|
var = enlist(node['var'])
|
|
op = enlist(node['op'])
|
|
expr = enlist(node['expr'])
|
|
len_node = len(enlist(op))
|
|
for i, (v, o, e) in enumerate(zip(var, op, expr)):
|
|
self.get_assignment('', {'var' : v, 'op' : o, 'expr' : e}, types = '', sep = ', ' if i != len_node - 1 else end)
|
|
get_inline_assignments(defs)
|
|
self.add(expr(self, _fornode["cond"]).eval(y=self.get_cname), '; ')
|
|
get_inline_assignments(_fornode['tail'], ') ')
|
|
if 'stmt' in _fornode:
|
|
self.get_block(ind, _fornode)
|
|
else:
|
|
self.add('\n')
|
|
self.get_stmt(ind + '\t', _fornode)
|
|
elif 'assignment' in n:
|
|
assign = n['assignment']
|
|
self.get_assignment(ind, assign)
|
|
|
|
|
|
def consume(self, node):
|
|
from engine.utils import check_legal_name, get_legal_name
|
|
node = node[self.name]
|
|
|
|
if 'params' in node:
|
|
for args in node['params']:
|
|
cname = get_legal_name(args)
|
|
self.var_table[args] = cname
|
|
self.args.append(cname)
|
|
front = [*self.code_list, ', '.join([f'const auto& {a}' for a in self.args])]
|
|
self.code_list = []
|
|
|
|
self.with_storage = False
|
|
self.with_statics = False
|
|
self.static_decl : Optional[List[str]] = None
|
|
ind = '\t'
|
|
if 'static_decl' in node:
|
|
self.add(') {\n')
|
|
curr = node['static_decl']
|
|
self.with_statics = True
|
|
if 'var' in curr and 'expr' in curr:
|
|
if len(curr['var']) != len(curr['expr']):
|
|
print("Error: every static variable must be initialized.")
|
|
self.static_decl = []
|
|
for v, e in zip(curr['var'], curr['expr']):
|
|
cname = get_legal_name(v)
|
|
self.var_table[v] = cname
|
|
self.static_decl.append(f'{cname} = ', expr(self, e, c_code=True).eval(self.get_cname))
|
|
self.add(f'{ind}static auto {"; static auto ".join(self.static_decl)};\n')
|
|
self.add(f'{ind}auto reset = [=]() {{ {"; ".join(self.static_decl)}; }};\n')
|
|
self.add(f'{ind}auto call = []({", ".join([f"decltype({a}) {a}" for a in self.args])}')
|
|
ind = '\t\t'
|
|
front = [*front, *self.code_list]
|
|
self.code_list = []
|
|
if 'stmt' in node:
|
|
self.get_stmt(ind, node['stmt'])
|
|
# first scan to determine vec types
|
|
# if self.agg:
|
|
# for assign in node['assignment']:
|
|
# var = fastscan(assign['var'])
|
|
# ex = fastscan(assign['expr'])
|
|
# self.vecs.union(var.vec_vars)
|
|
# self.vecs.union(var.requested_lens)
|
|
# self.vecs.union(ex.vec_vars)
|
|
# self.vecs.union(ex.requested_lens)
|
|
# if len(self.vecs) != 0:
|
|
# self.idx_var = 'idx_' + base62uuid(5)
|
|
# self.ccode += f'{ind}auto {self.idx_var} = 0;\n'
|
|
|
|
ret = node['ret']
|
|
def return_call(decltypestr = False):
|
|
if (decltypestr):
|
|
return ''
|
|
ret = ''
|
|
for r in self.return_call:
|
|
if callable(r):
|
|
ret += r(False)
|
|
else:
|
|
ret += r
|
|
return ret
|
|
self.return_call = (f'{ind}return ', expr(self, ret, c_code=True).eval(self.get_cname), ';\n')
|
|
self.add(return_call)
|
|
if self.with_statics:
|
|
self.add('\t};\n')
|
|
self.add('\treturn std::make_pair(reset, call);\n')
|
|
self.add('};\n')
|
|
|
|
#print(self.ccode)
|
|
self.builtin_args = [(name, var._type.cname) for name, var in self.builtin.items() if var.enabled]
|
|
# self.context.udf += front + builtin_argstr + self.ccode + '\n'
|
|
self.finalize(front)
|
|
|
|
def finalize(self, front):
|
|
builtin_argstr = ', ' if len(self.builtin_args) and len(self.args) else ''
|
|
builtin_argstr += ', '.join([f'{t} {n}' for (n, t) in self.builtin_args])
|
|
self.builtin_used = [b for b, v in self.builtin.items() if v.enabled]
|
|
ccode = ''
|
|
def process_recursion(l, decltypestr = False):
|
|
nonlocal ccode
|
|
for c in l:
|
|
if type(c) is str:
|
|
ccode += c
|
|
elif callable(c):
|
|
ccode += c(decltypestr) # a callback function
|
|
else:
|
|
raise ValueError(f'Illegal operation in udf code generation: {c}')
|
|
process_recursion(front)
|
|
ccode += builtin_argstr + ') {\n'
|
|
process_recursion(self.code_list)
|
|
self.context.udf += ccode + '\n'
|
|
ccode = ''
|
|
if self.return_pattern == udf.ReturnPattern.elemental_return:
|
|
ccode += f'auto {self.cname}_gettype = []('
|
|
process_recursion(front[1:], True)
|
|
ccode += ') {\n\tuint32_t _builtin_len = 0;\n'
|
|
process_recursion(self.code_list, True)
|
|
self.context.udf += ccode + '\n'
|
|
|
|
class ReturnPattern(Enum):
|
|
bulk_return = auto()
|
|
elemental_return = auto()
|
|
|
|
@property
|
|
def return_pattern(self):
|
|
if '_builtin_ret' in self.builtin_used:
|
|
return udf.ReturnPattern.elemental_return
|
|
else:
|
|
return udf.ReturnPattern.bulk_return
|
|
|
|
class user_module_function(OperatorBase):
|
|
def __init__(self, name, nargs, ret_type, context : Context):
|
|
super().__init__(name, nargs, lambda *_: ret_type, call=fn_behavior)
|
|
user_module_func[name] = self
|
|
# builtin_operators[name] = self
|
|
udf.try_init_udf(context)
|
|
|
|
def include(objs):
|
|
import inspect
|
|
for _, cls in inspect.getmembers(objs):
|
|
if inspect.isclass(cls) and issubclass(cls, ast_node) and type(cls.first_order) is str:
|
|
ast_node.types[cls.first_order] = cls
|
|
|
|
|
|
import sys
|
|
|
|
include(sys.modules[__name__])
|