この例では、Avroスキーマを表わすCHAR、VARCHAR、CLOB、JSONのデータ型を比較します。
/*fail due to name of symbol mismatch*/
SELECT SchemaEqual(
'{ "type": "enum",
"name": "Suit",
"symbols" : ["SPADES", "HEARTS", "DIAMONDS", "CLUBS"]
}',
'{ "type": "enum",
"name": "Suits",
"symbols" : ["SPADES", "HEARTS", "DIAMONDS", "CLUBS"]
}');
> 0
/*fail due to structural mismatch*/
SELECT SchemaEqual(
'{ "type": "enum",
"name": "Suit",
"symbols" : ["SPADES", "HEARTS", "DIAMONDS", "CLUBS"]
}',
'{ "type" : "array",
"items" : {
"type": "record",
"name": "test",
"doc": "this is unique01",
"fields" : [
{"name": "a", "type": "long"},
{"name": "b", "type": "string"}
]
}}');
> 0
/*success - everything is equal and doc is ignored*/
SELECT SchemaEqual(
'{ "type" : "array",
"items" : {
"type": "record",
"name": "test",
"doc": "this is unique01",
"fields" : [
{"name": "a", "type": "long"},
{"name": "b", "type": "string"}
]
}}',
'{ "type" : "array",
"items" : {
"type": "record",
"name": "test",
"doc": "this is unique02",
"fields" : [
{"name": "a", "type": "long"},
{"name": "b", "type": "string"}
]
}}');
> 1