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PgAlterTableAlterColumnDropDefaultConvertor Class — drizzle-orm Architecture

Architecture documentation for the PgAlterTableAlterColumnDropDefaultConvertor class in sqlgenerator.ts from the drizzle-orm codebase.

Class typescript DrizzleKit

Entity Profile

Dependency Diagram

graph TD
  393907d1_6b5c_87d3_09a3_c74284fe5fe9["PgAlterTableAlterColumnDropDefaultConvertor"]
  fe4174c7_3b9c_5b26_98a0_b2395ca21939["sqlgenerator.ts"]
  393907d1_6b5c_87d3_09a3_c74284fe5fe9 -->|defined in| fe4174c7_3b9c_5b26_98a0_b2395ca21939
  ff72aa5a_116e_4e6a_ba5c_2a25669c9f3a["can()"]
  393907d1_6b5c_87d3_09a3_c74284fe5fe9 -->|method| ff72aa5a_116e_4e6a_ba5c_2a25669c9f3a
  f51dcdfc_e1d8_920f_f08e_8324237faeb8["convert()"]
  393907d1_6b5c_87d3_09a3_c74284fe5fe9 -->|method| f51dcdfc_e1d8_920f_f08e_8324237faeb8

Relationship Graph

Source Code

drizzle-kit/src/sqlgenerator.ts lines 1985–2002

class PgAlterTableAlterColumnDropDefaultConvertor extends Convertor {
	can(statement: JsonStatement, dialect: Dialect): boolean {
		return (
			statement.type === 'alter_table_alter_column_drop_default'
			&& dialect === 'postgresql'
		);
	}

	convert(statement: JsonAlterColumnDropDefaultStatement) {
		const { tableName, columnName, schema } = statement;

		const tableNameWithSchema = schema
			? `"${schema}"."${tableName}"`
			: `"${tableName}"`;

		return `ALTER TABLE ${tableNameWithSchema} ALTER COLUMN "${columnName}" DROP DEFAULT;`;
	}
}

Domain

Defined In

Source

Frequently Asked Questions

What is the PgAlterTableAlterColumnDropDefaultConvertor class?
PgAlterTableAlterColumnDropDefaultConvertor is a class in the drizzle-orm codebase, defined in drizzle-kit/src/sqlgenerator.ts.
Where is PgAlterTableAlterColumnDropDefaultConvertor defined?
PgAlterTableAlterColumnDropDefaultConvertor is defined in drizzle-kit/src/sqlgenerator.ts at line 1985.

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