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support for session transaction and transaction snapshot. (#379)

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* add support for snapshot id in set transaction

Signed-off-by: poonai <rbalajis25@gmail.com>

* add support for default session transaction characteristics

Signed-off-by: poonai <rbalajis25@gmail.com>

* add additional assertion for parse_set_transaction test

Signed-off-by: poonai <rbalajis25@gmail.com>

* Fix clippy

Co-authored-by: Andrew Lamb <andrew@nerdnetworks.org>
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Poonai 2021-12-15 01:43:12 +05:30 • committed by GitHub
parent a81805ea30
commit 4c121a92a6
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5 changed files with 78 additions and 11 deletions
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26
tests/sqlparser_postgres.rs
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@ -723,6 +723,32 @@ fn parse_map_access_expr() {
);
}
#[test]
fn test_transaction_statement() {
let statement = pg().verified_stmt("SET TRANSACTION SNAPSHOT '000003A1-1'");
assert_eq!(
statement,
Statement::SetTransaction {
modes: vec![],
snapshot: Some(Value::SingleQuotedString(String::from("000003A1-1"))),
session: false
}
);
let statement = pg().verified_stmt("SET SESSION CHARACTERISTICS AS TRANSACTION READ ONLY, READ WRITE, ISOLATION LEVEL SERIALIZABLE");
assert_eq!(
statement,
Statement::SetTransaction {
modes: vec![
TransactionMode::AccessMode(TransactionAccessMode::ReadOnly),
TransactionMode::AccessMode(TransactionAccessMode::ReadWrite),
TransactionMode::IsolationLevel(TransactionIsolationLevel::Serializable),
],
snapshot: None,
session: true
}
);
}
fn pg() -> TestedDialects {
TestedDialects {
dialects: vec![Box::new(PostgreSqlDialect {})],