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Version: 3.1.0 (Latest)

Grammar Reference

This section describes grammar elements that are common to multiple SQL functions (DDL, Distribution Zones, etc.).

assign​

Parameters​

  • identifier - the name of table, column or other element that will be updated by the operation.
  • expression - a valid SQL expression that returns the values that must be assigned to the identifier.

Referenced by:

column_definition​

Keywords and parameters:

  • column_name - a column name.

  • DATA TYPE - the data type allowed in the column.

  • identifier - the random identifier for the row. Can be generated by using the rand_uuid function.

  • literal_value - a value to be assigned as default.

  • CURRENT_TIMESTAMP - the function that returns current time. Can only be used for TIMESTAMP WITH LOCAL TIME ZONE columns.

  • interval - the time interval by which the timestamp will be offset. Required if CURRENT_TIMESTAMP is used. The interval can be specified in:

    • SECONDS
    • MINUTES
    • HOURS
    • DAYS
    • MONTHS

    If the interval is 0, current time is used.

Referenced by:

column_definition_or_list​

Keywords and parameters:

  • column_name - a column name.
  • data_type - a valid data type.

Referenced by:

column_list​

Keywords and parameters:

  • column_name - a column name.

Referenced by:

column_name_or_list​

Keywords and parameters:

  • column_name - a column name.

Referenced by:

constraint​

Keywords and parameters:

  • constraint_name - a name of the constraint.

Referenced by:

group_item​

Parameters​

  • expression - a valid SQL expression that returns the values that must be assigned to the identifier.

Referenced by:

join_condition​

Parameters​

  • boolean_expression - an SQL expression that returns a boolean value. Only the records for which TRUE was returned will be returned. If not specified, all matching records are returned.

Referenced by:

order_item​

Parameters​

  • expression - a valid SQL expression that denotes the specific item in the SELECT clause.

Referenced by:

parameter​

Parameters:

  • parameter_name - the name of the parameter.
  • parameter_value - the value of the parameter.

When a parameter is specified, you can provide it as a literal value or as an identifier. For example:

CREATE ZONE test_zone;
CREATE TABLE test_table (id INT PRIMARY KEY, val INT) WITH PRIMARY_ZONE=test_zone;

In this case, test_zone is the identifier, and is used as an identifier. When used like this, the parameters are not case-sensitive.

CREATE ZONE "test_zone";
CREATE TABLE test_table (id INT PRIMARY KEY, val INT) WITH PRIMARY_ZONE='test_zone';

In this case, test_zone is created as a literal value, and is used as a literal. When used like this, the parameter is case-sensitive.

CREATE ZONE test_zone;
CREATE TABLE test_table (id INT PRIMARY KEY, val INT) WITH PRIMARY_ZONE=`TEST_ZONE`;

In this case, test_zone is created as an identifier, and is case-insensitive. As such, when TEST_ZONE is used as a literal, it still matches the identifier.

Referenced by:

project_item​

Parameters​

  • expression - a valid SQL expression that denotes the specific item in the SELECT clause.
  • table_alias - a qualified table alias to use.

Referenced by:

qualified_table_name​

Keywords and parameters:

  • schema - a name of the table schema.
  • table_name - a name of the table.

Referenced by:

query​

Parameters​

  • expression - a valid SQL expression.
  • start - the number of result to start the query from.
  • count - the number of values to fetch.

Referenced by:

select_without_from​

Referenced by:

sorted_column_list​

Keywords and parameters:

  • column_name - a column name.
  • NULLS FIRST - if specified, places any NULL values before all non-NULL in that column's ordering.
  • NULLS LAST - if specified, places NULLs after all non-NULLs in that column's ordering.

Referenced by:

table_expression​

Parameters​

Referenced by:

table_primary​

Parameters​

Referenced by:

table_reference​

Parameters​

  • alias - the alias that will be used for the table.
  • column_alias - the alias used for column.

Referenced by:

with_item​

Referenced by: