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b47b4dbf68
Have varlena.c expose an interface that allows the char(n), bytea, and bpchar types to piggyback on a now-generalized SortSupport for text. This pushes a little more knowledge of the bpchar/char(n) type into varlena.c than might be preferred, but that seems like the approach that creates least friction. Also speed things up for index builds that use text_pattern_ops or varchar_pattern_ops. This patch does quite a bit of renaming, but it seems likely to be worth it, so as to avoid future confusion about the fact that this code is now more generally used than the old names might have suggested. Peter Geoghegan, reviewed by Álvaro Herrera and Andreas Karlsson, with small tweaks by me.
53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
/*-------------------------------------------------------------------------
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*
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* bytea.h
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* Declarations for BYTEA data type support.
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*
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*
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* Portions Copyright (c) 1996-2016, 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/utils/bytea.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef BYTEA_H
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#define BYTEA_H
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#include "fmgr.h"
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typedef enum
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{
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BYTEA_OUTPUT_ESCAPE,
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BYTEA_OUTPUT_HEX
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} ByteaOutputType;
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extern int bytea_output; /* ByteaOutputType, but int for GUC enum */
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/* functions are in utils/adt/varlena.c */
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extern Datum byteain(PG_FUNCTION_ARGS);
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extern Datum byteaout(PG_FUNCTION_ARGS);
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extern Datum bytearecv(PG_FUNCTION_ARGS);
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extern Datum byteasend(PG_FUNCTION_ARGS);
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extern Datum byteaoctetlen(PG_FUNCTION_ARGS);
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extern Datum byteaGetByte(PG_FUNCTION_ARGS);
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extern Datum byteaGetBit(PG_FUNCTION_ARGS);
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extern Datum byteaSetByte(PG_FUNCTION_ARGS);
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extern Datum byteaSetBit(PG_FUNCTION_ARGS);
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extern Datum byteaeq(PG_FUNCTION_ARGS);
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extern Datum byteane(PG_FUNCTION_ARGS);
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extern Datum bytealt(PG_FUNCTION_ARGS);
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extern Datum byteale(PG_FUNCTION_ARGS);
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extern Datum byteagt(PG_FUNCTION_ARGS);
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extern Datum byteage(PG_FUNCTION_ARGS);
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extern Datum byteacmp(PG_FUNCTION_ARGS);
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extern Datum bytea_sortsupport(PG_FUNCTION_ARGS);
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extern Datum byteacat(PG_FUNCTION_ARGS);
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extern Datum byteapos(PG_FUNCTION_ARGS);
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extern Datum bytea_substr(PG_FUNCTION_ARGS);
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extern Datum bytea_substr_no_len(PG_FUNCTION_ARGS);
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extern Datum byteaoverlay(PG_FUNCTION_ARGS);
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extern Datum byteaoverlay_no_len(PG_FUNCTION_ARGS);
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#endif /* BYTEA_H */
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