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- /*-------------------------------------------------------------------------
- *
- * parse_relation.h
- * prototypes for parse_relation.c.
- *
- *
- * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of California
- *
- * src/include/parser/parse_relation.h
- *
- *-------------------------------------------------------------------------
- */
- #ifndef PARSE_RELATION_H
- #define PARSE_RELATION_H
- #include "parser/parse_node.h"
- /*
- * Support for fuzzily matching column.
- *
- * This is for building diagnostic messages, where non-exact matching
- * attributes are suggested to the user. The struct's fields may be facets of
- * a particular RTE, or of an entire range table, depending on context.
- */
- typedef struct
- {
- int distance; /* Weighted distance (lowest so far) */
- RangeTblEntry *rfirst; /* RTE of first */
- AttrNumber first; /* Closest attribute so far */
- RangeTblEntry *rsecond; /* RTE of second */
- AttrNumber second; /* Second closest attribute so far */
- } FuzzyAttrMatchState;
- extern RangeTblEntry *refnameRangeTblEntry(ParseState *pstate,
- const char *schemaname,
- const char *refname,
- int location,
- int *sublevels_up);
- extern CommonTableExpr *scanNameSpaceForCTE(ParseState *pstate,
- const char *refname,
- Index *ctelevelsup);
- extern void checkNameSpaceConflicts(ParseState *pstate, List *namespace1,
- List *namespace2);
- extern int RTERangeTablePosn(ParseState *pstate,
- RangeTblEntry *rte,
- int *sublevels_up);
- extern RangeTblEntry *GetRTEByRangeTablePosn(ParseState *pstate,
- int varno,
- int sublevels_up);
- extern CommonTableExpr *GetCTEForRTE(ParseState *pstate, RangeTblEntry *rte,
- int rtelevelsup);
- extern Node *scanRTEForColumn(ParseState *pstate, RangeTblEntry *rte,
- char *colname, int location,
- int fuzzy_rte_penalty, FuzzyAttrMatchState *fuzzystate);
- extern Node *colNameToVar(ParseState *pstate, char *colname, bool localonly,
- int location);
- extern void markVarForSelectPriv(ParseState *pstate, Var *var,
- RangeTblEntry *rte);
- extern Relation parserOpenTable(ParseState *pstate, const RangeVar *relation,
- int lockmode);
- extern RangeTblEntry *addRangeTableEntry(ParseState *pstate,
- RangeVar *relation,
- Alias *alias,
- bool inh,
- bool inFromCl);
- extern RangeTblEntry *addRangeTableEntryForRelation(ParseState *pstate,
- Relation rel,
- Alias *alias,
- bool inh,
- bool inFromCl);
- extern RangeTblEntry *addRangeTableEntryForSubquery(ParseState *pstate,
- Query *subquery,
- Alias *alias,
- bool lateral,
- bool inFromCl);
- extern RangeTblEntry *addRangeTableEntryForFunction(ParseState *pstate,
- List *funcnames,
- List *funcexprs,
- List *coldeflists,
- RangeFunction *rangefunc,
- bool lateral,
- bool inFromCl);
- extern RangeTblEntry *addRangeTableEntryForValues(ParseState *pstate,
- List *exprs,
- List *collations,
- Alias *alias,
- bool lateral,
- bool inFromCl);
- extern RangeTblEntry *addRangeTableEntryForJoin(ParseState *pstate,
- List *colnames,
- JoinType jointype,
- List *aliasvars,
- Alias *alias,
- bool inFromCl);
- extern RangeTblEntry *addRangeTableEntryForCTE(ParseState *pstate,
- CommonTableExpr *cte,
- Index levelsup,
- RangeVar *rv,
- bool inFromCl);
- extern bool isLockedRefname(ParseState *pstate, const char *refname);
- extern void addRTEtoQuery(ParseState *pstate, RangeTblEntry *rte,
- bool addToJoinList,
- bool addToRelNameSpace, bool addToVarNameSpace);
- extern void errorMissingRTE(ParseState *pstate, RangeVar *relation) pg_attribute_noreturn();
- extern void errorMissingColumn(ParseState *pstate,
- char *relname, char *colname, int location) pg_attribute_noreturn();
- extern void expandRTE(RangeTblEntry *rte, int rtindex, int sublevels_up,
- int location, bool include_dropped,
- List **colnames, List **colvars);
- extern List *expandRelAttrs(ParseState *pstate, RangeTblEntry *rte,
- int rtindex, int sublevels_up, int location);
- extern int attnameAttNum(Relation rd, const char *attname, bool sysColOK);
- extern Name attnumAttName(Relation rd, int attid);
- extern Oid attnumTypeId(Relation rd, int attid);
- extern Oid attnumCollationId(Relation rd, int attid);
- extern bool isQueryUsingTempRelation(Query *query);
- #endif /* PARSE_RELATION_H */
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