diff options
| author | Tom Lane | 2007-09-25 22:21:55 +0000 |
|---|---|---|
| committer | Tom Lane | 2007-09-25 22:21:55 +0000 |
| commit | f828f878e96b83cc50569305e2f2eccfde1e8181 (patch) | |
| tree | 35ba9fbb88249091cafc9bf8d379d3e5856eeade | |
| parent | 7a315a09dc0f7a1f903b89022a2a833c1719145b (diff) | |
Change on-disk representation of NUMERIC datatype so that the sign_dscale
word comes before the weight instead of after. This will allow future
binary-compatible extension of the representation to support compact formats,
as discussed on pgsql-hackers around 2007/06/18. The reason to do it now is
that we've already pretty well broken any chance of simple in-place upgrade
from 8.2 to 8.3, but it's possible that 8.3 to 8.4 (or whenever we get around
to squeezing NUMERIC) could otherwise be data-compatible.
| -rw-r--r-- | src/include/catalog/catversion.h | 4 | ||||
| -rw-r--r-- | src/include/utils/numeric.h | 6 |
2 files changed, 5 insertions, 5 deletions
diff --git a/src/include/catalog/catversion.h b/src/include/catalog/catversion.h index d00770acc2..9776bc10da 100644 --- a/src/include/catalog/catversion.h +++ b/src/include/catalog/catversion.h @@ -37,7 +37,7 @@ * Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.428 2007/09/25 20:03:38 tgl Exp $ + * $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.429 2007/09/25 22:21:55 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -53,6 +53,6 @@ */ /* yyyymmddN */ -#define CATALOG_VERSION_NO 200709241 +#define CATALOG_VERSION_NO 200709251 #endif diff --git a/src/include/utils/numeric.h b/src/include/utils/numeric.h index cffba1e164..e14251591e 100644 --- a/src/include/utils/numeric.h +++ b/src/include/utils/numeric.h @@ -7,7 +7,7 @@ * * Copyright (c) 1998-2007, PostgreSQL Global Development Group * - * $PostgreSQL: pgsql/src/include/utils/numeric.h,v 1.24 2007/02/27 23:48:10 tgl Exp $ + * $PostgreSQL: pgsql/src/include/utils/numeric.h,v 1.25 2007/09/25 22:21:55 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -63,14 +63,14 @@ typedef struct NumericData { int32 vl_len_; /* varlena header (do not touch directly!) */ - int16 n_weight; /* Weight of 1st digit */ uint16 n_sign_dscale; /* Sign + display scale */ + int16 n_weight; /* Weight of 1st digit */ char n_data[1]; /* Digits (really array of NumericDigit) */ } NumericData; typedef NumericData *Numeric; -#define NUMERIC_HDRSZ (VARHDRSZ + sizeof(int16) + sizeof(uint16)) +#define NUMERIC_HDRSZ (VARHDRSZ + sizeof(uint16) + sizeof(int16)) /* |