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Add support for Snowflake SHOW DATABASES/SCHEMAS/TABLES/VIEWS/COLUMNS statements (#1501)

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Yoav Cohen 2024-11-13 13:55:26 +02:00 • committed by GitHub
parent 632ba4cf8e
commit 76322baf2f
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8 changed files with 591 additions and 159 deletions
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177
tests/sqlparser_mysql.rs
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@ -223,14 +223,22 @@ fn parse_flush() {
#[test]
fn parse_show_columns() {
let table_name = ObjectName(vec![Ident::new("mytable")]);
assert_eq!(
mysql_and_generic().verified_stmt("SHOW COLUMNS FROM mytable"),
Statement::ShowColumns {
extended: false,
full: false,
table_name: table_name.clone(),
filter: None,
show_options: ShowStatementOptions {
show_in: Some(ShowStatementIn {
clause: ShowStatementInClause::FROM,
parent_type: None,
parent_name: Some(ObjectName(vec![Ident::new("mytable")])),
}),
filter_position: None,
limit_from: None,
limit: None,
starts_with: None,
}
}
);
assert_eq!(
@ -238,8 +246,17 @@ fn parse_show_columns() {
Statement::ShowColumns {
extended: false,
full: false,
table_name: ObjectName(vec![Ident::new("mydb"), Ident::new("mytable")]),
filter: None,
show_options: ShowStatementOptions {
show_in: Some(ShowStatementIn {
clause: ShowStatementInClause::FROM,
parent_type: None,
parent_name: Some(ObjectName(vec![Ident::new("mydb"), Ident::new("mytable")])),
}),
filter_position: None,
limit_from: None,
limit: None,
starts_with: None,
}
}
);
assert_eq!(
@ -247,8 +264,17 @@ fn parse_show_columns() {
Statement::ShowColumns {
extended: true,
full: false,
table_name: table_name.clone(),
filter: None,
show_options: ShowStatementOptions {
show_in: Some(ShowStatementIn {
clause: ShowStatementInClause::FROM,
parent_type: None,
parent_name: Some(ObjectName(vec![Ident::new("mytable")])),
}),
filter_position: None,
limit_from: None,
limit: None,
starts_with: None,
}
}
);
assert_eq!(
@ -256,8 +282,17 @@ fn parse_show_columns() {
Statement::ShowColumns {
extended: false,
full: true,
table_name: table_name.clone(),
filter: None,
show_options: ShowStatementOptions {
show_in: Some(ShowStatementIn {
clause: ShowStatementInClause::FROM,
parent_type: None,
parent_name: Some(ObjectName(vec![Ident::new("mytable")])),
}),
filter_position: None,
limit_from: None,
limit: None,
starts_with: None,
}
}
);
assert_eq!(
@ -265,8 +300,19 @@ fn parse_show_columns() {
Statement::ShowColumns {
extended: false,
full: false,
table_name: table_name.clone(),
filter: Some(ShowStatementFilter::Like("pattern".into())),
show_options: ShowStatementOptions {
show_in: Some(ShowStatementIn {
clause: ShowStatementInClause::FROM,
parent_type: None,
parent_name: Some(ObjectName(vec![Ident::new("mytable")])),
}),
filter_position: Some(ShowStatementFilterPosition::Suffix(
ShowStatementFilter::Like("pattern".into())
)),
limit_from: None,
limit: None,
starts_with: None,
}
}
);
assert_eq!(
@ -274,18 +320,27 @@ fn parse_show_columns() {
Statement::ShowColumns {
extended: false,
full: false,
table_name,
filter: Some(ShowStatementFilter::Where(
mysql_and_generic().verified_expr("1 = 2")
)),
show_options: ShowStatementOptions {
show_in: Some(ShowStatementIn {
clause: ShowStatementInClause::FROM,
parent_type: None,
parent_name: Some(ObjectName(vec![Ident::new("mytable")])),
}),
filter_position: Some(ShowStatementFilterPosition::Suffix(
ShowStatementFilter::Where(mysql_and_generic().verified_expr("1 = 2"))
)),
limit_from: None,
limit: None,
starts_with: None,
}
}
);
mysql_and_generic()
.one_statement_parses_to("SHOW FIELDS FROM mytable", "SHOW COLUMNS FROM mytable");
mysql_and_generic()
.one_statement_parses_to("SHOW COLUMNS IN mytable", "SHOW COLUMNS FROM mytable");
.one_statement_parses_to("SHOW COLUMNS IN mytable", "SHOW COLUMNS IN mytable");
mysql_and_generic()
.one_statement_parses_to("SHOW FIELDS IN mytable", "SHOW COLUMNS FROM mytable");
.one_statement_parses_to("SHOW FIELDS IN mytable", "SHOW COLUMNS IN mytable");
mysql_and_generic().one_statement_parses_to(
"SHOW COLUMNS FROM mytable FROM mydb",
"SHOW COLUMNS FROM mydb.mytable",
@ -327,63 +382,111 @@ fn parse_show_tables() {
assert_eq!(
mysql_and_generic().verified_stmt("SHOW TABLES"),
Statement::ShowTables {
terse: false,
history: false,
extended: false,
full: false,
clause: None,
db_name: None,
filter: None,
external: false,
show_options: ShowStatementOptions {
starts_with: None,
limit: None,
limit_from: None,
show_in: None,
filter_position: None
}
}
);
assert_eq!(
mysql_and_generic().verified_stmt("SHOW TABLES FROM mydb"),
Statement::ShowTables {
terse: false,
history: false,
extended: false,
full: false,
clause: Some(ShowClause::FROM),
db_name: Some(Ident::new("mydb")),
filter: None,
external: false,
show_options: ShowStatementOptions {
starts_with: None,
limit: None,
limit_from: None,
show_in: Some(ShowStatementIn {
clause: ShowStatementInClause::FROM,
parent_type: None,
parent_name: Some(ObjectName(vec![Ident::new("mydb")])),
}),
filter_position: None
}
}
);
assert_eq!(
mysql_and_generic().verified_stmt("SHOW EXTENDED TABLES"),
Statement::ShowTables {
terse: false,
history: false,
extended: true,
full: false,
clause: None,
db_name: None,
filter: None,
external: false,
show_options: ShowStatementOptions {
starts_with: None,
limit: None,
limit_from: None,
show_in: None,
filter_position: None
}
}
);
assert_eq!(
mysql_and_generic().verified_stmt("SHOW FULL TABLES"),
Statement::ShowTables {
terse: false,
history: false,
extended: false,
full: true,
clause: None,
db_name: None,
filter: None,
external: false,
show_options: ShowStatementOptions {
starts_with: None,
limit: None,
limit_from: None,
show_in: None,
filter_position: None
}
}
);
assert_eq!(
mysql_and_generic().verified_stmt("SHOW TABLES LIKE 'pattern'"),
Statement::ShowTables {
terse: false,
history: false,
extended: false,
full: false,
clause: None,
db_name: None,
filter: Some(ShowStatementFilter::Like("pattern".into())),
external: false,
show_options: ShowStatementOptions {
starts_with: None,
limit: None,
limit_from: None,
show_in: None,
filter_position: Some(ShowStatementFilterPosition::Suffix(
ShowStatementFilter::Like("pattern".into())
))
}
}
);
assert_eq!(
mysql_and_generic().verified_stmt("SHOW TABLES WHERE 1 = 2"),
Statement::ShowTables {
terse: false,
history: false,
extended: false,
full: false,
clause: None,
db_name: None,
filter: Some(ShowStatementFilter::Where(
mysql_and_generic().verified_expr("1 = 2")
)),
external: false,
show_options: ShowStatementOptions {
starts_with: None,
limit: None,
limit_from: None,
show_in: None,
filter_position: Some(ShowStatementFilterPosition::Suffix(
ShowStatementFilter::Where(mysql_and_generic().verified_expr("1 = 2"))
))
}
}
);
mysql_and_generic().verified_stmt("SHOW TABLES IN mydb");