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fb5d05805b
recent proposal. As proof of concept, remove knowledge of Params from the core parser, arranging for them to be handled entirely by parser hook functions. It turns out we need an additional hook for that --- I had forgotten about the code that handles inferring a parameter's type from context. This is a preliminary step towards letting plpgsql handle its variables through parser hooks. Additional work remains to be done to expose the facility through SPI, but I think this is all the changes needed in the core parser.
94 lines
3.4 KiB
C
94 lines
3.4 KiB
C
/*-------------------------------------------------------------------------
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*
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* parse_relation.h
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* prototypes for parse_relation.c.
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*
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*
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* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/include/parser/parse_relation.h,v 1.67 2009/10/31 01:41:31 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PARSE_RELATION_H
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#define PARSE_RELATION_H
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#include "parser/parse_node.h"
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extern RangeTblEntry *refnameRangeTblEntry(ParseState *pstate,
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const char *schemaname,
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const char *refname,
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int location,
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int *sublevels_up);
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extern CommonTableExpr *scanNameSpaceForCTE(ParseState *pstate,
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const char *refname,
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Index *ctelevelsup);
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extern void checkNameSpaceConflicts(ParseState *pstate, List *namespace1,
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List *namespace2);
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extern int RTERangeTablePosn(ParseState *pstate,
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RangeTblEntry *rte,
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int *sublevels_up);
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extern RangeTblEntry *GetRTEByRangeTablePosn(ParseState *pstate,
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int varno,
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int sublevels_up);
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extern CommonTableExpr *GetCTEForRTE(ParseState *pstate, RangeTblEntry *rte,
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int rtelevelsup);
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extern Node *scanRTEForColumn(ParseState *pstate, RangeTblEntry *rte,
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char *colname, int location);
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extern Node *colNameToVar(ParseState *pstate, char *colname, bool localonly,
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int location);
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extern void markVarForSelectPriv(ParseState *pstate, Var *var,
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RangeTblEntry *rte);
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extern Relation parserOpenTable(ParseState *pstate, const RangeVar *relation,
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int lockmode);
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extern RangeTblEntry *addRangeTableEntry(ParseState *pstate,
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RangeVar *relation,
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Alias *alias,
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bool inh,
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bool inFromCl);
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extern RangeTblEntry *addRangeTableEntryForRelation(ParseState *pstate,
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Relation rel,
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Alias *alias,
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bool inh,
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bool inFromCl);
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extern RangeTblEntry *addRangeTableEntryForSubquery(ParseState *pstate,
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Query *subquery,
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Alias *alias,
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bool inFromCl);
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extern RangeTblEntry *addRangeTableEntryForFunction(ParseState *pstate,
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char *funcname,
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Node *funcexpr,
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RangeFunction *rangefunc,
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bool inFromCl);
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extern RangeTblEntry *addRangeTableEntryForValues(ParseState *pstate,
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List *exprs,
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Alias *alias,
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bool inFromCl);
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extern RangeTblEntry *addRangeTableEntryForJoin(ParseState *pstate,
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List *colnames,
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JoinType jointype,
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List *aliasvars,
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Alias *alias,
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bool inFromCl);
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extern RangeTblEntry *addRangeTableEntryForCTE(ParseState *pstate,
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CommonTableExpr *cte,
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Index levelsup,
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Alias *alias,
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bool inFromCl);
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extern bool isLockedRefname(ParseState *pstate, const char *refname);
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extern void addRTEtoQuery(ParseState *pstate, RangeTblEntry *rte,
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bool addToJoinList,
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bool addToRelNameSpace, bool addToVarNameSpace);
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extern void errorMissingRTE(ParseState *pstate, RangeVar *relation);
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extern void expandRTE(RangeTblEntry *rte, int rtindex, int sublevels_up,
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int location, bool include_dropped,
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List **colnames, List **colvars);
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extern List *expandRelAttrs(ParseState *pstate, RangeTblEntry *rte,
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int rtindex, int sublevels_up, int location);
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extern int attnameAttNum(Relation rd, const char *attname, bool sysColOK);
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extern Name attnumAttName(Relation rd, int attid);
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extern Oid attnumTypeId(Relation rd, int attid);
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#endif /* PARSE_RELATION_H */
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