mirror of https://github.com/citusdata/citus.git
65 lines
2.3 KiB
SQL
65 lines
2.3 KiB
SQL
CREATE TEMPORARY TABLE output (line text);
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CREATE SCHEMA dumper;
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SET search_path TO 'dumper';
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SET citus.next_shard_id TO 2900000;
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SET citus.shard_replication_factor TO 1;
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CREATE TABLE data (
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key int,
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value text
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);
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SELECT create_distributed_table('data', 'key');
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COPY data FROM STDIN WITH (format csv, delimiter '|', escape '\');
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1|{"this":"is","json":1}
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2|{"$\"":9}
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3|{"{}":" "}
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4|{}
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\.
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-- duplicate the data using pg_dump
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\COPY output FROM PROGRAM 'pg_dump --quote-all-identifiers -h localhost -p 57636 -U postgres -d regression -t dumper.data --data-only | psql -tAX -h localhost -p 57636 -U postgres -d regression'
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-- data should now appear twice
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COPY data TO STDOUT;
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-- go crazy with names
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CREATE TABLE "weird.table" (
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"key," int primary key,
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"data.jsonb" jsonb,
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"?empty(" text default ''
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);
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SELECT create_distributed_table('"weird.table"', 'key,');
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CREATE INDEX "weird.json_idx" ON "weird.table" USING GIN ("data.jsonb" jsonb_path_ops);
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COPY "weird.table" ("key,", "data.jsonb") FROM STDIN WITH (format 'text');
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1 {"weird":{"table":"{:"}}
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2 {"?\\\"":[]}
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\.
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-- fast table dump with many options
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COPY dumper."weird.table" ("data.jsonb", "?empty(")TO STDOUT WITH (format csv, force_quote ("?empty("), null 'null', delimiter '?', quote '_', header 1);
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-- do a full pg_dump of the schema, use some weird quote/escape/delimiter characters to capture the full line
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\COPY output FROM PROGRAM 'pg_dump -f results/pg_dump.tmp -h localhost -p 57636 -U postgres -d regression -n dumper --quote-all-identifiers' WITH (format csv, delimiter '|', escape '^', quote '^')
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-- drop the schema
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DROP SCHEMA dumper CASCADE;
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-- recreate the schema
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\COPY (SELECT line FROM output WHERE line IS NOT NULL) TO PROGRAM 'psql -qtAX -h localhost -p 57636 -U postgres -d regression -f results/pg_dump.tmp' WITH (format csv, delimiter '|', escape '^', quote '^')
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-- redistribute the schema
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SELECT create_distributed_table('data', 'key');
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SELECT create_distributed_table('"weird.table"', 'key,');
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-- check the table contents
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COPY data (value) TO STDOUT WITH (format csv, force_quote *);
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COPY dumper."weird.table" ("data.jsonb", "?empty(") TO STDOUT WITH (format csv, force_quote ("?empty("), null 'null', header true);
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SELECT indexname FROM pg_indexes WHERE tablename = 'weird.table' ORDER BY indexname;
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DROP SCHEMA dumper CASCADE;
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