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/*------------------------------------------------------------------------- * * parse_agg.h * handle aggregates and window functions in parser * * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/parser/parse_agg.h * *------------------------------------------------------------------------- */ #ifndef PARSE_AGG_H #define PARSE_AGG_H #include "parser/parse_node.h" extern void transformAggregateCall(ParseState *pstate, Aggref *agg, List *args, List *aggorder, bool agg_distinct); extern Node *transformGroupingFunc(ParseState *pstate, GroupingFunc *g); extern void transformWindowFuncCall(ParseState *pstate, WindowFunc *wfunc, WindowDef *windef); extern void parseCheckAggregates(ParseState *pstate, Query *qry); extern List *expand_grouping_sets(List *groupingSets, int limit); extern int get_aggregate_argtypes(Aggref *aggref, Oid *inputTypes); extern Oid resolve_aggregate_transtype(Oid aggfuncid, Oid aggtranstype, Oid *inputTypes, int numArguments); extern void build_aggregate_transfn_expr(Oid *agg_input_types, int agg_num_inputs, int agg_num_direct_inputs, bool agg_variadic, Oid agg_state_type, Oid agg_input_collation, Oid transfn_oid, Oid invtransfn_oid, Expr **transfnexpr, Expr **invtransfnexpr); extern void build_aggregate_combinefn_expr(Oid agg_state_type, Oid agg_input_collation, Oid combinefn_oid, Expr **combinefnexpr); extern void build_aggregate_serialfn_expr(Oid serialfn_oid, Expr **serialfnexpr); extern void build_aggregate_deserialfn_expr(Oid deserialfn_oid, Expr **deserialfnexpr); extern void build_aggregate_finalfn_expr(Oid *agg_input_types, int num_finalfn_inputs, Oid agg_state_type, Oid agg_result_type, Oid agg_input_collation, Oid finalfn_oid, Expr **finalfnexpr); #endif /* PARSE_AGG_H */