mirror of
https://github.com/GreptimeTeam/greptimedb.git
synced 2026-05-17 05:20:37 +00:00
89 lines
2.5 KiB
SQL
89 lines
2.5 KiB
SQL
CREATE FLOW pending_user_cnt SINK TO pending_user_cnt_sink AS
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SELECT host, COUNT(val) AS total_val
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FROM pending_user_cnt_source
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GROUP BY host;
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SELECT source_table_ids, source_table_names, flownode_ids
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FROM information_schema.flows
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WHERE flow_name = 'pending_user_cnt';
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SHOW CREATE TABLE pending_user_cnt_sink;
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CREATE TABLE pending_user_cnt_source (
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ts TIMESTAMP TIME INDEX,
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host STRING,
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val DOUBLE,
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PRIMARY KEY(host)
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);
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-- SQLNESS SLEEP 15s
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SHOW CREATE TABLE pending_user_cnt_sink;
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INSERT INTO pending_user_cnt_source VALUES
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('2026-03-12T00:00:00Z', 'host1', 1.0),
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('2026-03-12T00:00:01Z', 'host1', 2.0),
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('2026-03-12T00:00:02Z', 'host2', 3.0);
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-- SQLNESS REPLACE (ADMIN\sFLUSH_FLOW\('\w+'\)\s+\|\n\+-+\+\n\|\s+)[0-9]+\s+\| $1 FLOW_FLUSHED |
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ADMIN FLUSH_FLOW('pending_user_cnt');
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SELECT host, total_val FROM pending_user_cnt_sink ORDER BY host;
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DROP FLOW pending_user_cnt;
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DROP TABLE pending_user_cnt_source;
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DROP TABLE pending_user_cnt_sink;
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CREATE TABLE pending_replace_src_a (
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ts TIMESTAMP TIME INDEX,
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host STRING,
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val DOUBLE,
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PRIMARY KEY(host)
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);
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CREATE FLOW pending_replace_flow SINK TO pending_replace_sink AS
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SELECT host, COUNT(val) AS total_val
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FROM pending_replace_src_a
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GROUP BY host;
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INSERT INTO pending_replace_src_a VALUES
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('2026-03-12T00:10:00Z', 'host_old', 1.0),
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('2026-03-12T00:10:01Z', 'host_old', 2.0);
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-- SQLNESS REPLACE (ADMIN\sFLUSH_FLOW\('\w+'\)\s+\|\n\+-+\+\n\|\s+)[0-9]+\s+\| $1 FLOW_FLUSHED |
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ADMIN FLUSH_FLOW('pending_replace_flow');
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SELECT host, total_val FROM pending_replace_sink WHERE host = 'host_old';
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CREATE OR REPLACE FLOW pending_replace_flow SINK TO pending_replace_sink AS
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SELECT host, COUNT(val) AS total_val
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FROM pending_replace_src_b
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GROUP BY host;
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CREATE TABLE pending_replace_src_b (
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ts TIMESTAMP TIME INDEX,
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host STRING,
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val DOUBLE,
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PRIMARY KEY(host)
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);
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-- SQLNESS SLEEP 15s
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INSERT INTO pending_replace_src_a VALUES
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('2026-03-12T00:11:00Z', 'host_old_after_replace', 9.0);
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INSERT INTO pending_replace_src_b VALUES
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('2026-03-12T00:11:00Z', 'host_new_after_replace', 3.0),
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('2026-03-12T00:11:01Z', 'host_new_after_replace', 4.0);
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-- SQLNESS REPLACE (ADMIN\sFLUSH_FLOW\('\w+'\)\s+\|\n\+-+\+\n\|\s+)[0-9]+\s+\| $1 FLOW_FLUSHED |
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ADMIN FLUSH_FLOW('pending_replace_flow');
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SELECT host, total_val
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FROM pending_replace_sink
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WHERE host IN ('host_old_after_replace', 'host_new_after_replace')
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ORDER BY host;
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DROP FLOW pending_replace_flow;
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DROP TABLE pending_replace_src_a;
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DROP TABLE pending_replace_src_b;
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DROP TABLE pending_replace_sink;
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