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Version: 1.21.0 (latest)

dlt.destinations.impl.clickhouse.sql_client

ClickHouseSqlClient Objects​

class ClickHouseSqlClient(
        SqlClientBase[clickhouse_driver.dbapi.connection.Connection],
        DBTransaction)

View source on GitHub

drop_tables​

def drop_tables(*tables: str) -> None

View source on GitHub

Drops a set of tables if they exist

escape_pct​

@staticmethod
def escape_pct(expr: str) -> str

View source on GitHub

Returns SQL expression with % characters escaped.

This doubles % characters used as modulo, wildcard, or literal, but leaves those used in placeholders (%s) alone:

  • modulo: 16 % 4 ➜ 16 %% 4
  • wildcard: 'test' LIKE '%es%' ➜ 'test' LIKE '%%es%%'
  • literal: '100% sure' ➜ '100%% sure'
  • placeholder: SELECT %s AS value ➜ SELECT %s AS value

This demo works on codespaces. Codespaces is a development environment available for free to anyone with a Github account. You'll be asked to fork the demo repository and from there the README guides you with further steps.
The demo uses the Continue VSCode extension.

Off to codespaces!

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