Test suite for network splits. #6
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This is the commit message #2: Tracking on which foreign servers we already started COPY. If foreign server holds several partitions, COPY FROM to local root partition will try to perform several copies at the same time through one connection, obviously without much success. Now we track that and start/end COPY only once. We also allow to pass destination relation name which may be different from foreing table -- so we can copy into foreign root partition in shardman. This is pretty narrow solution. However, keeping several connections to the same foreign server requires significant changes, especially in 2pc handling, so staying here for now. This is the commit message #3: Allow COPY FROM to par8d table even if some FDW parts can't do that. This behaviour was broken in patches allowing COPY FROM to FDW tables. This is the commit message #4: COPY FROM deparse more complete, PG_SHARDMAN macro. Now column names, FORCE NULL and FORCE NOT NULL are deparsed too. PG_SHARDMAN macro ensures this PG contains patches for Postgres. This is the commit message #5: Disable COPY FROM to foreign parts, because no generic impl exists. This is the commit message #6: Fix COPY FROM deparse, forgotten comma for FORCE_NULL etc.
arssher
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Jul 19, 2018
Cherry-picked from af234df. This is the commit message #2: Tracking on which foreign servers we already started COPY. If foreign server holds several partitions, COPY FROM to local root partition will try to perform several copies at the same time through one connection, obviously without much success. Now we track that and start/end COPY only once. We also allow to pass destination relation name which may be different from foreing table -- so we can copy into foreign root partition in shardman. This is pretty narrow solution. However, keeping several connections to the same foreign server requires significant changes, especially in 2pc handling, so staying here for now. This is the commit message #3: Allow COPY FROM to par8d table even if some FDW parts can't do that. This behaviour was broken in patches allowing COPY FROM to FDW tables. This is the commit message #4: COPY FROM deparse more complete, PG_SHARDMAN macro. Now column names, FORCE NULL and FORCE NOT NULL are deparsed too. PG_SHARDMAN macro ensures this PG contains patches for Postgres. This is the commit message #5: Disable COPY FROM to foreign parts, because no generic impl exists. This is the commit message #6: Fix COPY FROM deparse, forgotten comma for FORCE_NULL etc.
arssher
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Sep 17, 2018
Cherry-picked from af234df. This is the commit message #2: Tracking on which foreign servers we already started COPY. If foreign server holds several partitions, COPY FROM to local root partition will try to perform several copies at the same time through one connection, obviously without much success. Now we track that and start/end COPY only once. We also allow to pass destination relation name which may be different from foreing table -- so we can copy into foreign root partition in shardman. This is pretty narrow solution. However, keeping several connections to the same foreign server requires significant changes, especially in 2pc handling, so staying here for now. This is the commit message #3: Allow COPY FROM to par8d table even if some FDW parts can't do that. This behaviour was broken in patches allowing COPY FROM to FDW tables. This is the commit message #4: COPY FROM deparse more complete, PG_SHARDMAN macro. Now column names, FORCE NULL and FORCE NOT NULL are deparsed too. PG_SHARDMAN macro ensures this PG contains patches for Postgres. This is the commit message #5: Disable COPY FROM to foreign parts, because no generic impl exists. This is the commit message #6: Fix COPY FROM deparse, forgotten comma for FORCE_NULL etc.
arssher
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Oct 5, 2018
Cherry-picked from af234df. This is the commit message #2: Tracking on which foreign servers we already started COPY. If foreign server holds several partitions, COPY FROM to local root partition will try to perform several copies at the same time through one connection, obviously without much success. Now we track that and start/end COPY only once. We also allow to pass destination relation name which may be different from foreing table -- so we can copy into foreign root partition in shardman. This is pretty narrow solution. However, keeping several connections to the same foreign server requires significant changes, especially in 2pc handling, so staying here for now. This is the commit message #3: Allow COPY FROM to par8d table even if some FDW parts can't do that. This behaviour was broken in patches allowing COPY FROM to FDW tables. This is the commit message #4: COPY FROM deparse more complete, PG_SHARDMAN macro. Now column names, FORCE NULL and FORCE NOT NULL are deparsed too. PG_SHARDMAN macro ensures this PG contains patches for Postgres. This is the commit message #5: Disable COPY FROM to foreign parts, because no generic impl exists. This is the commit message #6: Fix COPY FROM deparse, forgotten comma for FORCE_NULL etc.
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