mirror of https://gitee.com/bigwinds/arangodb
31 lines
761 B
Plaintext
31 lines
761 B
Plaintext
arangosh> db.test.ensureUniqueConstraint("a", "b.c");
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{
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"id" : "test/651974044",
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"type" : "hash",
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"fields" : [
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"a",
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"b.c"
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],
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"selectivityEstimate" : 1,
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"unique" : true,
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"sparse" : false,
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"isNewlyCreated" : true,
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"code" : 201
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}
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arangosh> db.test.save({ a : 1, b : { c : 1 } });
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{
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"_id" : "test/652301724",
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"_rev" : "652301724",
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"_key" : "652301724"
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}
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arangosh> db.test.save({ a : 1, b : { c : 1 } });
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[ArangoError 1210: cannot create document, unique constraint violated]
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arangosh> db.test.save({ a : 1, b : { c : null } });
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{
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"_id" : "test/652760476",
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"_rev" : "652760476",
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"_key" : "652760476"
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}
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arangosh> db.test.save({ a : 1 });
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[ArangoError 1210: cannot create document, unique constraint violated]
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