Package dev.frostlake.executor.commands

package dev.frostlake.executor.commands

Related Packages

Package	Description
dev.frostlake.executor

Class	Description
AlterCommandHandler	Handles ALTER <object-type> … statements for DATABASE / SCHEMA / MASKING & ROW ACCESS POLICY / TABLE / VIEW / STREAM / TASK / PIPE / WAREHOUSE / STAGE / USER / ROLE / SESSION / TAG, extracted verbatim from SQLCommandVisitor.visitAlterStatement(dev.frostlake.parser.FrostlakeParser.AlterStatementContext).
BeginEndBlockHandler	Handles Snowflake Scripting BEGIN … [EXCEPTION …] END blocks, extracted verbatim from SQLCommandVisitor.visitBeginEndBlock(dev.frostlake.parser.FrostlakeParser.BeginEndBlockContext) together with its cohesive exception-handling helpers (bindHandlerErrorVariables, shouldHandleException, matchesSnowflakeException — each used only by this path).
BindsInDefinition	A definition may not carry an unnamed bind.
ClusterKeyValidation	Validates clustering-key expressions: every column reference must name a column of the table.
ColumnDefinitionParser	Parses column / data-type / constraint / default-value grammar into metastore models — extracted from DDLCommandHandler (CREATE TABLE, CREATE FUNCTION/PROCEDURE parameters, DROP FUNCTION arg types, ALTER) so those handlers share one parser.
CommandHandler	Base interface for SQL command handlers
CommentCommandHandler	Handles COMMENT ON <object-type> … statements, extracted verbatim from SQLCommandVisitor.visitCommentStatement(dev.frostlake.parser.FrostlakeParser.CommentStatementContext).
CreateInfrastructureHandler	Handles CREATE for infrastructure objects — TASK, PIPE, SEQUENCE, WAREHOUSE, STAGE — extracted from DDLCommandHandler, which keeps the CREATE dispatch and delegates here.
CreateNamespaceHandler	Handles the namespace CREATE shapes — DATABASE and SCHEMA (including CLONE) — extracted from DDLCommandHandler, which keeps the CREATE dispatch and delegates here.
CreateRelationalHandler	Handles the SELECT-backed CREATE shapes — VIEW, MATERIALIZED VIEW, and DYNAMIC TABLE — extracted from DDLCommandHandler, which keeps the CREATE dispatch and delegates here.
CreateRoutineHandler	Handles CREATE FUNCTION and CREATE PROCEDURE (UDF / stored-procedure creation across SQL/JS/Python/Java/ Scala), extracted from DDLCommandHandler, which keeps the CREATE dispatch and delegates here.
CreateSecurityHandler	Handles CREATE for security / governance objects — TAG, MASKING POLICY, ROW ACCESS POLICY, USER, ROLE — extracted from DDLCommandHandler, which keeps the CREATE dispatch and delegates here.
CreateTableHandler	Handles CREATE TABLE (plain, CLONE, and CREATE TABLE AS SELECT), extracted from DDLCommandHandler, which keeps the CREATE dispatch and delegates here.
DataTypeParser	The one dataTypeName parse-tree → DataType mapping, shared by column / parameter definitions (ColumnDefinitionParser) and by expression casts (the expression AST builder), so a type spelled in a CREATE TABLE and the same type spelled in a CAST produce the same object.
DDLCommandHandler	Handler for DDL (Data Definition Language) commands: CREATE, DROP, ALTER, USE, TRUNCATE, COMMENT
DMLCommandHandler	Handler for DML (Data Manipulation Language) commands: INSERT, UPDATE, DELETE, MERGE
DropCommandHandler	Handles DROP statements (DROP TABLE/VIEW/DATABASE/SCHEMA/STREAM/TASK/SEQUENCE/...), extracted from DDLCommandHandler, which keeps the public dispatch and delegates here.
DynamicTableProperties	The properties ALTER DYNAMIC TABLE sets or unsets.
GrantRevokeHandler	Handles GRANT … and REVOKE … statements, extracted verbatim from SQLCommandVisitor.visitGrantStatement(dev.frostlake.parser.FrostlakeParser.GrantStatementContext) and SQLCommandVisitor.visitRevokeStatement(dev.frostlake.parser.FrostlakeParser.RevokeStatementContext).
MaskingPolicyAttachment	The type rule a masking policy attachment must pass.
QueryCommandHandler	Handler for Query commands: SELECT statements
RowAccessPolicyAttachment	The checks a row access policy attachment must pass, shared by the ALTER form and the CREATE TABLE / CREATE VIEW clauses — live makes the same ones wherever the attachment is written, with a single measured difference: an unknown column is an invalid identifier on the ALTER path and a column 'X' does not exist at CREATE, so the caller reports that one.
ShowCommandHandler	Handler for SHOW and DESCRIBE commands: SHOW DATABASES, SHOW SCHEMAS, SHOW TABLES, DESCRIBE TABLE, etc.
ShowModifierProfile	What the TERSE / STARTS WITH / LIMIT modifiers actually do to one SHOW listing.
TargetLag	How Snowflake stores a dynamic table's TARGET_LAG: the input is canonicalized, not echoed.