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Update alter tag #1074

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merged 4 commits into from
Mar 8, 2022
Merged

Update alter tag #1074

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16f4250
Update alter tag
aminmaghsodi Jan 30, 2022
0bd76de
Update 3.alter-tag.md
cooper-lzy Feb 18, 2022
f7536c7
Update 3.alter-tag.md
cooper-lzy Feb 18, 2022
e5cbb45
Merge branch 'master' into patch-1
randomJoe211 Mar 8, 2022
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7 changes: 5 additions & 2 deletions docs-2.0/3.ngql-guide/10.tag-statements/3.alter-tag.md
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Expand Up @@ -14,7 +14,9 @@
ALTER TAG <tag_name>
<alter_definition> [[, alter_definition] ...]
[ttl_definition [, ttl_definition] ... ]
[COMMENT = '<comment>'];
[COMMENT '<comment>']
[NOT NULL]
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[DEFAULT <defalut_value>];

alter_definition:
| ADD (prop_name data_type)
Expand All @@ -35,7 +37,8 @@ ttl_definition:
nebula> CREATE TAG IF NOT EXISTS t1 (p1 string, p2 int);
nebula> ALTER TAG t1 ADD (p3 int, p4 string);
nebula> ALTER TAG t1 TTL_DURATION = 2, TTL_COL = "p2";
nebula> ALTER TAG t1 COMMENT = 'test1';
nebula> ALTER TAG t1 COMMENT 'test1';
nebula> ALTER TAG t1 ADD (p5 double NOT NULL DEFAULT 0.4 COMMENT 'Some comment')
```

## Implementation of the operation
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