Fix error drop column with reserved word

[shoumoji]

Fix: hashicorp/terraform-provider-google#20750

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bigquery: fixed DROP COLUMN error with bigquery reserved word in `google_bigquery_table`

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[shoumoji]

If droppedColumns = []string("column1", "column2") ,

backquotedDroppedColumns = []string("`column1`", "`column2`")
droppedColumnsString = "`column1`, DROP COLUMN `column2`"
dropColumnsDDL = "ALTER TABLE <table_id> DROP Column `column1`, DROP COLUMN `column2`"

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[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes:

Diff report

Your PR generated some diffs in downstreams - here they are.

google provider: Diff ( 1 file changed, 5 insertions(+), 1 deletion(-))
google-beta provider: Diff ( 1 file changed, 5 insertions(+), 1 deletion(-))

[modular-magician]

Tests analytics

Total tests: 128
Passed tests: 114
Skipped tests: 10
Affected tests: 4

Click here to see the affected service packages

• bigquery

Action taken

Found 4 affected test(s) by replaying old test recordings. Starting RECORDING based on the most recent commit. Click here to see the affected tests

• TestAccBigQueryTable_DropColumns
• TestAccBigQueryTable_Update_SchemaWithPolicyTagsToEmptyPolicyTag
• TestAccBigQueryTable_Update_SchemaWithPolicyTagsToEmptyPolicyTagNames
• TestAccBigQueryTable_Update_SchemaWithPolicyTagsToNoPolicyTag

Get to know how VCR tests work

[modular-magician]

🟢 Tests passed during RECORDING mode:
TestAccBigQueryTable_DropColumns [Debug log]
TestAccBigQueryTable_Update_SchemaWithPolicyTagsToEmptyPolicyTag [Debug log]
TestAccBigQueryTable_Update_SchemaWithPolicyTagsToEmptyPolicyTagNames [Debug log]
TestAccBigQueryTable_Update_SchemaWithPolicyTagsToNoPolicyTag [Debug log]

🟢 No issues found for passed tests after REPLAYING rerun.

---

🟢 All tests passed!

View the build log or the debug log for each test

[wj-chen]

Thank you for the fix! Can you also update the test in

magic-modules/mmv1/third_party/terraform/services/bigquery/resource_bigquery_table_test.go.tmpl

Line 114 in 1a28a91

func TestAccBigQueryTable_DropColumns(t *testing.T) {

to cover dropping a column with a reserved word in the name?