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from sqlglot import exp
from sqlglot.dialects.dialect import arrow_json_extract_sql, rename_func
from sqlglot.dialects.mysql import MySQL
class StarRocks(MySQL):
class Generator(MySQL.Generator):
TYPE_MAPPING = {
**MySQL.Generator.TYPE_MAPPING,
exp.DataType.Type.TEXT: "STRING",
exp.DataType.Type.TIMESTAMP: "DATETIME",
exp.DataType.Type.TIMESTAMPTZ: "DATETIME",
}
TRANSFORMS = {
**MySQL.Generator.TRANSFORMS,
exp.JSONExtractScalar: arrow_json_extract_sql,
exp.JSONExtract: arrow_json_extract_sql,
exp.DateDiff: rename_func("DATEDIFF"),
exp.StrToUnix: lambda self, e: f"UNIX_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
exp.TimeStrToDate: rename_func("TO_DATE"),
exp.UnixToStr: lambda self, e: f"FROM_UNIXTIME({self.sql(e, 'this')}, {self.format_time(e)})",
exp.UnixToTime: rename_func("FROM_UNIXTIME"),
}
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