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Implementation of SQL property graph queries, according to SQL/PGQ standard (ISO/IEC 9075-16:2023). This adds: - GRAPH_TABLE table function for graph pattern matching - DDL commands CREATE/ALTER/DROP PROPERTY GRAPH - several new system catalogs and information schema views - psql \dG command - pg_get_propgraphdef() function for pg_dump and psql A property graph is a relation with a new relkind RELKIND_PROPGRAPH. It acts like a view in many ways. It is rewritten to a standard relational query in the rewriter. Access privileges act similar to a security invoker view. (The security definer variant is not currently implemented.) Starting documentation can be found in doc/src/sgml/ddl.sgml and doc/src/sgml/queries.sgml. Author: Peter Eisentraut <peter@eisentraut.org> Author: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com> Reviewed-by: Junwang Zhao <zhjwpku@gmail.com> Reviewed-by: Ajay Pal <ajay.pal.k@gmail.com> Reviewed-by: Henson Choi <assam258@gmail.com> Discussion: https://www.postgresql.org/message-id/flat/a855795d-e697-4fa5-8698-d20122126567@eisentraut.org
21 lines
622 B
C
21 lines
622 B
C
/*-------------------------------------------------------------------------
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*
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* rewriteGraphTable.h
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* Support for rewriting GRAPH_TABLE clauses.
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*
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*
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* Portions Copyright (c) 1996-2026, 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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* src/include/rewrite/rewriteGraphTable.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef REWRITEGRAPHTABLE_H
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#define REWRITEGRAPHTABLE_H
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#include "nodes/parsenodes.h"
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extern Query *rewriteGraphTable(Query *parsetree, int rt_index);
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#endif /* REWRITEGRAPHTABLE_H */
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