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Add extra_float_digits GUC parameter to allow adjustment of displayed

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precision for float4, float8, and geometric types.  Set it in pg_dump
so that float data can be dumped/reloaded exactly (at least on platforms
where the float I/O support is properly implemented).  Initial patch by
Pedro Ferreira, some additional work by Tom Lane.
This commit is contained in:
Tom Lane
2002-11-08 17:37:52 +00:00
parent fef731d1c4
commit d2c744aa56
8 changed files with 107 additions and 39 deletions
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4
src/include/utils/builtins.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: builtins.h,v 1.204 2002/11/02 18:41:22 tgl Exp $
* $Id: builtins.h,v 1.205 2002/11/08 17:37:52 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -212,6 +212,8 @@ extern Datum btnamecmp(PG_FUNCTION_ARGS);
extern Datum bttextcmp(PG_FUNCTION_ARGS);
/* float.c */
extern int extra_float_digits;
extern Datum float4in(PG_FUNCTION_ARGS);
extern Datum float4out(PG_FUNCTION_ARGS);
extern Datum float8in(PG_FUNCTION_ARGS);