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The cstring datatype can now be copied, passed around, etc. The typlen

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value '-2' is used to indicate a variable-width type whose width is
computed as strlen(datum)+1.  Everything that looks at typlen is updated
except for array support, which Joe Conway is working on; at the moment
it wouldn't work to try to create an array of cstring.
This commit is contained in:
Tom Lane
2002-08-24 15:00:47 +00:00
parent cf4d885c67
commit 976246cc7e
23 changed files with 260 additions and 198 deletions
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12
src/interfaces/libpq/fe-exec.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-exec.c,v 1.120 2002/06/20 20:29:53 momjian Exp $
* $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-exec.c,v 1.121 2002/08/24 15:00:47 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -1138,14 +1138,10 @@ getRowDescriptions(PGconn *conn)
/*
* Since pqGetInt treats 2-byte integers as unsigned, we need to
* coerce the special value "-1" to signed form. (-1 is sent for
* variable-length fields.) Formerly, libpq effectively did a
* sign-extension on the 2-byte value by storing it in a signed
* short. Now we only coerce the single value 65535 == -1; values
* 32768..65534 are taken as valid field lengths.
* coerce the result to signed form.
*/
if (typlen == 0xFFFF)
typlen = -1;
typlen = (int) ((int16) typlen);
result->attDescs[i].name = pqResultStrdup(result,
conn->workBuffer.data);
result->attDescs[i].typid = typid;