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Fix table syncing with different column order

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Logical replication supports replicating between tables with different
column order.  But this failed for the initial table sync because of a
logic error in how the column list for the internal COPY command was
composed.  Fix that and also add a test.

Also fix a minor omission in the column name mapping cache.  When
creating the mapping list, it would not skip locally dropped columns.
So if a remote column had the same name as a locally dropped
column (...pg.dropped...), then the expected error would not occur.
This commit is contained in:
Peter Eisentraut
2017-05-18 14:16:16 -04:00
parent 92ecb148e5
commit 073ce405d6
3 changed files with 23 additions and 17 deletions
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9
src/backend/replication/logical/relation.c
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@@ -277,8 +277,13 @@ logicalrep_rel_open(LogicalRepRelId remoteid, LOCKMODE lockmode)
found = 0;
for (i = 0; i < desc->natts; i++)
{
int attnum = logicalrep_rel_att_by_name(remoterel,
NameStr(desc->attrs[i]->attname));
int attnum;
if (desc->attrs[i]->attisdropped)
continue;
attnum = logicalrep_rel_att_by_name(remoterel,
NameStr(desc->attrs[i]->attname));
entry->attrmap[i] = attnum;
if (attnum >= 0)