xuzifu666 commented on code in PR #4453:
URL: https://github.com/apache/calcite/pull/4453#discussion_r2176687291
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core/src/main/java/org/apache/calcite/sql/dialect/ClickHouseSqlDialect.java:
##########
@@ -118,36 +122,63 @@ public ClickHouseSqlDialect(Context context) {
}
@Override public @Nullable SqlNode getCastSpec(RelDataType type) {
- if (type instanceof BasicSqlType) {
- SqlTypeName typeName = type.getSqlTypeName();
- switch (typeName) {
- case CHAR:
- return createSqlDataTypeSpecByName(
- String.format(Locale.ROOT, "FixedString(%s)",
- type.getPrecision()), typeName, type.isNullable());
- case VARCHAR:
- return createSqlDataTypeSpecByName("String", typeName,
type.isNullable());
- case TINYINT:
- return createSqlDataTypeSpecByName("Int8", typeName,
type.isNullable());
- case SMALLINT:
- return createSqlDataTypeSpecByName("Int16", typeName,
type.isNullable());
- case INTEGER:
- return createSqlDataTypeSpecByName("Int32", typeName,
type.isNullable());
- case BIGINT:
- return createSqlDataTypeSpecByName("Int64", typeName,
type.isNullable());
- case REAL:
- return createSqlDataTypeSpecByName("Float32", typeName,
type.isNullable());
- case FLOAT:
- case DOUBLE:
- return createSqlDataTypeSpecByName("Float64", typeName,
type.isNullable());
- case DATE:
- return createSqlDataTypeSpecByName("Date", typeName,
type.isNullable());
- case TIMESTAMP:
- case TIMESTAMP_WITH_LOCAL_TIME_ZONE:
- return createSqlDataTypeSpecByName("DateTime", typeName,
type.isNullable());
- default:
- break;
- }
+ SqlTypeName typeName = type.getSqlTypeName();
+ switch (typeName) {
+ case CHAR:
+ return createSqlDataTypeSpecByName(
+ String.format(Locale.ROOT, "FixedString(%s)",
+ type.getPrecision()), typeName, type.isNullable());
+ case VARCHAR:
+ return createSqlDataTypeSpecByName("String", typeName,
type.isNullable());
+ case TINYINT:
+ return createSqlDataTypeSpecByName("Int8", typeName, type.isNullable());
+ case SMALLINT:
+ return createSqlDataTypeSpecByName("Int16", typeName, type.isNullable());
+ case INTEGER:
+ return createSqlDataTypeSpecByName("Int32", typeName, type.isNullable());
+ case BIGINT:
+ return createSqlDataTypeSpecByName("Int64", typeName, type.isNullable());
+ case REAL:
+ return createSqlDataTypeSpecByName("Float32", typeName,
type.isNullable());
+ case FLOAT:
+ case DOUBLE:
+ return createSqlDataTypeSpecByName("Float64", typeName,
type.isNullable());
+ case DATE:
+ return createSqlDataTypeSpecByName("Date", typeName, type.isNullable());
+ case TIMESTAMP:
+ case TIMESTAMP_WITH_LOCAL_TIME_ZONE:
+ return createSqlDataTypeSpecByName("DateTime", typeName,
type.isNullable());
+ case MAP:
+ MapSqlType mapSqlType = (MapSqlType) type;
Review Comment:
Had added new custom class ClickHouseSqlMapTypeNameSpec and
ClickHouseSqlArrayTypeNameSpec to support it. @mihaibudiu
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