38 lines
1.4 KiB
C
38 lines
1.4 KiB
C
/*---------------------------------------------------------------------------------------*
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* gms_lob.h
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*
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* Definition about gms_lob package.
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*
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* IDENTIFICATION
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* contrib/gms_stats/gms_lob.h
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*
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* ---------------------------------------------------------------------------------------
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*/
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#ifndef GMS_LOB_H
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#define GMS_LOB_H
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/* blob/clob最大存储长度1G*/
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#define LOBMAXSIZE (int64)0x3fffffff
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#define AMOUNT_MAX_SIZE 32767
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typedef struct GmsLobContext {
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struct HTAB* gmsLobNameHash;
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} GmsLobContext;
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extern "C" Datum gms_lob_og_createtemporary(PG_FUNCTION_ARGS);
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extern "C" Datum gms_lob_og_freetemporary(PG_FUNCTION_ARGS);
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extern "C" Datum gms_lob_og_read_blob(PG_FUNCTION_ARGS);
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extern "C" Datum gms_lob_og_read_clob(PG_FUNCTION_ARGS);
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extern "C" Datum gms_lob_og_write_blob(PG_FUNCTION_ARGS);
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extern "C" Datum gms_lob_og_write_clob(PG_FUNCTION_ARGS);
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extern "C" Datum gms_lob_og_isopen(PG_FUNCTION_ARGS);
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extern "C" Datum gms_lob_og_open(PG_FUNCTION_ARGS);
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extern "C" Datum gms_lob_og_append_blob(PG_FUNCTION_ARGS);
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extern "C" Datum gms_lob_og_append_clob(PG_FUNCTION_ARGS);
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extern "C" Datum gms_lob_og_close(PG_FUNCTION_ARGS);
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extern "C" Datum gms_lob_og_cloblength(PG_FUNCTION_ARGS);
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extern "C" Datum gms_lob_og_bloblength(PG_FUNCTION_ARGS);
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extern "C" Datum gms_lob_og_null(PG_FUNCTION_ARGS);
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extern "C" void set_extension_index(uint32 index);
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extern "C" void init_session_vars(void);
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extern "C" GmsLobContext* get_session_context();
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#endif
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