mirror of
https://github.com/apache/datafusion-sqlparser-rs.git
synced 2025-11-04 08:48:23 +00:00
ac555d7e86
The rationale here is the same as the last commit: since this crate exclusively parses SQL, there's no need to restate that in every type name. (The prefix seems to be an artifact of this crate's history as a submodule of Datafusion, where it was useful to explicitly call out which types were related to SQL parsing.) This commit has the additional benefit of making all type names consistent; over type we'd added some types which were not prefixed with "SQL".
80 lines
2.6 KiB
Rust
80 lines
2.6 KiB
Rust
// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#![warn(clippy::all)]
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//! Test SQL syntax specific to Microsoft's T-SQL. The parser based on the
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//! generic dialect is also tested (on the inputs it can handle).
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use sqlparser::ast::*;
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use sqlparser::dialect::{GenericDialect, MsSqlDialect};
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use sqlparser::test_utils::*;
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#[test]
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fn parse_mssql_identifiers() {
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let sql = "SELECT @@version, _foo$123 FROM ##temp";
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let select = ms_and_generic().verified_only_select(sql);
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assert_eq!(
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&Expr::Identifier("@@version".to_string()),
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expr_from_projection(&select.projection[0]),
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);
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assert_eq!(
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&Expr::Identifier("_foo$123".to_string()),
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expr_from_projection(&select.projection[1]),
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);
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assert_eq!(2, select.projection.len());
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match &only(&select.from).relation {
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TableFactor::Table { name, .. } => {
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assert_eq!("##temp".to_string(), name.to_string());
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}
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_ => unreachable!(),
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};
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}
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#[test]
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fn parse_mssql_single_quoted_aliases() {
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let _ = ms_and_generic().one_statement_parses_to("SELECT foo 'alias'", "SELECT foo AS 'alias'");
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}
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#[test]
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fn parse_mssql_delimited_identifiers() {
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let _ = ms().one_statement_parses_to(
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"SELECT [a.b!] [FROM] FROM foo [WHERE]",
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"SELECT [a.b!] AS [FROM] FROM foo AS [WHERE]",
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);
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}
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#[test]
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fn parse_mssql_apply_join() {
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let _ = ms_and_generic().verified_only_select(
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"SELECT * FROM sys.dm_exec_query_stats AS deqs \
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CROSS APPLY sys.dm_exec_query_plan(deqs.plan_handle)",
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);
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let _ = ms_and_generic().verified_only_select(
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"SELECT * FROM sys.dm_exec_query_stats AS deqs \
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OUTER APPLY sys.dm_exec_query_plan(deqs.plan_handle)",
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);
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let _ = ms_and_generic().verified_only_select(
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"SELECT * FROM foo \
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OUTER APPLY (SELECT foo.x + 1) AS bar",
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);
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}
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fn ms() -> TestedDialects {
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TestedDialects {
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dialects: vec![Box::new(MsSqlDialect {})],
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}
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}
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fn ms_and_generic() -> TestedDialects {
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TestedDialects {
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dialects: vec![Box::new(MsSqlDialect {}), Box::new(GenericDialect {})],
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}
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}
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