If you have data in another format (say for example JSON) convert it to one of the supported format and pipe it directly into an existing PostgreSQL table !
PostgreSQL supports text, csv/tsv and binary data. This means you can take your favorite CSV or TSV file and pipe it directly into an existing PostgreSQL table. how? what? huh?ĭid you know that PostgreSQL supports streaming data directly into and out of a table? Stream from one database to another, and stuff. To follow along, run cockroach demo to start a temporary, in-memory cluster with the movr dataset preloaded: For more information about the MovR example application and dataset, see MovR: A Global Vehicle-sharing App.
The following examples use MovR, a fictional vehicle-sharing application, to demonstrate CockroachDB SQL statements. You must specify new primary keys at table creation. AS is not automatically derived from the query results. The primary key of tables created with CREATE TABLE. The default rules for column families apply. CockroachDB only supports session-scoped temporary tables, and does not support the clauses ON COMMIT DELETE ROWS and ON COMMIT DROP, which are used to define transaction-scoped temporary tables in PostgreSQL. This clause is a no-op, allowed by the parser for PostgreSQL compatibility. For an example, see Create a spatial index that uses all of the tuning parameters. The fillfactor parameter is a no-op, allowed for PostgreSQL-compatibility.įor details, see Spatial index tuning parameters. Supported parameters include fillfactor, s2_max_level, s2_level_mod, s2_max_cells, geometry_min_x, geometry_max_x, geometry_min_y, and geometry_max_y. Support for temporary tables is in preview.Ī comma-separated list of spatial index tuning parameters. Note that the LOCAL, GLOBAL, and UNLOGGED options are no-ops, allowed by the parser for PostgreSQL compatibility.
For more information, see Temporary Tables. Column family names must be unique within the table but can have the same name as columns, constraints, or indexes.ĭefines the table as a session-scoped temporary table. The name of the column you want to use instead of the name of the column from select_stmt.Īn optional column definition, which may include primary key constraints and column family assignments.Īn optional column family definition. It's therefore not recommended to use the name excluded for any of your tables. The UPSERT and INSERT ON CONFLICT statements use a temporary table called excluded to handle uniqueness conflicts during execution. When the parent database is not set as the default, the name must be formatted as database.name. The name of the table to create, which must be unique within its database and follow these identifier rules. Note that IF NOT EXISTS checks the table name only it does not check if an existing table has the same columns, indexes, constraints, etc., of the new table. Create a new table only if a table of the same name does not already exist in the database if one does exist, do not return an error.
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