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71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
/*-------------------------------------------------------------------------
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*
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* postgres_ext.h
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*
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* This file contains declarations of things that are visible everywhere
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* in PostgreSQL *and* are visible to clients of frontend interface libraries.
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* For example, the Oid type is part of the API of libpq and other libraries.
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*
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* Declarations which are specific to a particular interface should
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* go in the header file for that interface (such as libpq-fe.h). This
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* file is only for fundamental Postgres declarations.
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*
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* User-written C functions don't count as "external to Postgres."
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* Those function much as local modifications to the backend itself, and
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* use header files that are otherwise internal to Postgres to interface
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* with the backend.
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*
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* src/include/postgres_ext.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef POSTGRES_EXT_H
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#define POSTGRES_EXT_H
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#include "pg_config_ext.h"
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/*
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* Object ID is a fundamental type in Postgres.
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*/
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typedef unsigned int Oid;
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#ifdef __cplusplus
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#define InvalidOid (Oid(0))
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#else
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#define InvalidOid ((Oid) 0)
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#endif
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#define OID_MAX UINT_MAX
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/* you will need to include <limits.h> to use the above #define */
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/* Define a signed 64-bit integer type for use in client API declarations. */
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typedef PG_INT64_TYPE pg_int64;
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/*
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* Identifiers of error message fields. Kept here to keep common
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* between frontend and backend, and also to export them to libpq
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* applications.
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*/
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#define PG_DIAG_SEVERITY 'S'
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#define PG_DIAG_SEVERITY_NONLOCALIZED 'V'
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#define PG_DIAG_SQLSTATE 'C'
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#define PG_DIAG_MESSAGE_PRIMARY 'M'
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#define PG_DIAG_MESSAGE_DETAIL 'D'
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#define PG_DIAG_MESSAGE_HINT 'H'
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#define PG_DIAG_STATEMENT_POSITION 'P'
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#define PG_DIAG_INTERNAL_POSITION 'p'
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#define PG_DIAG_INTERNAL_QUERY 'q'
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#define PG_DIAG_CONTEXT 'W'
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#define PG_DIAG_SCHEMA_NAME 's'
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#define PG_DIAG_TABLE_NAME 't'
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#define PG_DIAG_COLUMN_NAME 'c'
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#define PG_DIAG_DATATYPE_NAME 'd'
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#define PG_DIAG_CONSTRAINT_NAME 'n'
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#define PG_DIAG_SOURCE_FILE 'F'
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#define PG_DIAG_SOURCE_LINE 'L'
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#define PG_DIAG_SOURCE_FUNCTION 'R'
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#endif /* POSTGRES_EXT_H */
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