database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-30 21:42:05 +03:00
Code Activity

pg_dump: Reorganize dumpBaseType()

Browse Source 
Along the same lines as ed2c7f65b and daa9fe8a5, reduce code duplication
by having just one copy of the parts of the query that are the same
across all server versions; and make the conditionals control the
smallest possible amount of code.  This is in preparation for adding
another dumpable field to pg_type.
This commit is contained in:
Tom Lane
2020-12-06 22:37:40 -05:00
parent 51c3889877
commit 0473296246
1 changed files with 40 additions and 72 deletions
Download Patch File Download Diff File Expand all files Collapse all files

112
src/bin/pg_dump/pg_dump.c
View File

@ -10810,79 +10810,47 @@ dumpBaseType(Archive *fout, TypeInfo *tyinfo)
bool typdefault_is_literal = false;
/* Fetch type-specific details */
if (fout->remoteVersion >= 90100)
{
appendPQExpBuffer(query, "SELECT typlen, "
"typinput, typoutput, typreceive, typsend, "
"typmodin, typmodout, typanalyze, "
"typreceive::pg_catalog.oid AS typreceiveoid, "
"typsend::pg_catalog.oid AS typsendoid, "
"typmodin::pg_catalog.oid AS typmodinoid, "
"typmodout::pg_catalog.oid AS typmodoutoid, "
"typanalyze::pg_catalog.oid AS typanalyzeoid, "
"typcategory, typispreferred, "
"typdelim, typbyval, typalign, typstorage, "
"(typcollation <> 0) AS typcollatable, "
"pg_catalog.pg_get_expr(typdefaultbin, 0) AS typdefaultbin, typdefault "
"FROM pg_catalog.pg_type "
"WHERE oid = '%u'::pg_catalog.oid",
tyinfo->dobj.catId.oid);
}
else if (fout->remoteVersion >= 80400)
{
appendPQExpBuffer(query, "SELECT typlen, "
"typinput, typoutput, typreceive, typsend, "
"typmodin, typmodout, typanalyze, "
"typreceive::pg_catalog.oid AS typreceiveoid, "
"typsend::pg_catalog.oid AS typsendoid, "
"typmodin::pg_catalog.oid AS typmodinoid, "
"typmodout::pg_catalog.oid AS typmodoutoid, "
"typanalyze::pg_catalog.oid AS typanalyzeoid, "
"typcategory, typispreferred, "
"typdelim, typbyval, typalign, typstorage, "
"false AS typcollatable, "
"pg_catalog.pg_get_expr(typdefaultbin, 0) AS typdefaultbin, typdefault "
"FROM pg_catalog.pg_type "
"WHERE oid = '%u'::pg_catalog.oid",
tyinfo->dobj.catId.oid);
}
else if (fout->remoteVersion >= 80300)
{
/* Before 8.4, pg_get_expr does not allow 0 for its second arg */
appendPQExpBuffer(query, "SELECT typlen, "
"typinput, typoutput, typreceive, typsend, "
"typmodin, typmodout, typanalyze, "
"typreceive::pg_catalog.oid AS typreceiveoid, "
"typsend::pg_catalog.oid AS typsendoid, "
"typmodin::pg_catalog.oid AS typmodinoid, "
"typmodout::pg_catalog.oid AS typmodoutoid, "
"typanalyze::pg_catalog.oid AS typanalyzeoid, "
"'U' AS typcategory, false AS typispreferred, "
"typdelim, typbyval, typalign, typstorage, "
"false AS typcollatable, "
"pg_catalog.pg_get_expr(typdefaultbin, 'pg_catalog.pg_type'::pg_catalog.regclass) AS typdefaultbin, typdefault "
"FROM pg_catalog.pg_type "
"WHERE oid = '%u'::pg_catalog.oid",
tyinfo->dobj.catId.oid);
}
appendPQExpBufferStr(query, "SELECT typlen, "
"typinput, typoutput, typreceive, typsend, "
"typreceive::pg_catalog.oid AS typreceiveoid, "
"typsend::pg_catalog.oid AS typsendoid, "
"typanalyze, "
"typanalyze::pg_catalog.oid AS typanalyzeoid, "
"typdelim, typbyval, typalign, typstorage, ");
if (fout->remoteVersion >= 80300)
appendPQExpBufferStr(query,
"typmodin, typmodout, "
"typmodin::pg_catalog.oid AS typmodinoid, "
"typmodout::pg_catalog.oid AS typmodoutoid, ");
else
{
appendPQExpBuffer(query, "SELECT typlen, "
"typinput, typoutput, typreceive, typsend, "
"'-' AS typmodin, '-' AS typmodout, "
"typanalyze, "
"typreceive::pg_catalog.oid AS typreceiveoid, "
"typsend::pg_catalog.oid AS typsendoid, "
"0 AS typmodinoid, 0 AS typmodoutoid, "
"typanalyze::pg_catalog.oid AS typanalyzeoid, "
"'U' AS typcategory, false AS typispreferred, "
"typdelim, typbyval, typalign, typstorage, "
"false AS typcollatable, "
"pg_catalog.pg_get_expr(typdefaultbin, 'pg_catalog.pg_type'::pg_catalog.regclass) AS typdefaultbin, typdefault "
"FROM pg_catalog.pg_type "
"WHERE oid = '%u'::pg_catalog.oid",
tyinfo->dobj.catId.oid);
}
appendPQExpBufferStr(query,
"'-' AS typmodin, '-' AS typmodout, "
"0 AS typmodinoid, 0 AS typmodoutoid, ");
if (fout->remoteVersion >= 80400)
appendPQExpBufferStr(query,
"typcategory, typispreferred, ");
else
appendPQExpBufferStr(query,
"'U' AS typcategory, false AS typispreferred, ");
if (fout->remoteVersion >= 90100)
appendPQExpBufferStr(query, "(typcollation <> 0) AS typcollatable, ");
else
appendPQExpBufferStr(query, "false AS typcollatable, ");
/* Before 8.4, pg_get_expr does not allow 0 for its second arg */
if (fout->remoteVersion >= 80400)
appendPQExpBufferStr(query,
"pg_catalog.pg_get_expr(typdefaultbin, 0) AS typdefaultbin, typdefault ");
else
appendPQExpBufferStr(query,
"pg_catalog.pg_get_expr(typdefaultbin, 'pg_catalog.pg_type'::pg_catalog.regclass) AS typdefaultbin, typdefault ");
appendPQExpBuffer(query, "FROM pg_catalog.pg_type "
"WHERE oid = '%u'::pg_catalog.oid",
tyinfo->dobj.catId.oid);
res = ExecuteSqlQueryForSingleRow(fout, query->data);