Trait sea_query::extension::postgres::PgExpr

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pub trait PgExpr: Expression {
    // Provided methods
    fn concatenate<T>(self, right: T) -> SimpleExpr
       where T: Into<SimpleExpr> { ... }
    fn concat<T>(self, right: T) -> SimpleExpr
       where T: Into<SimpleExpr> { ... }
    fn matches<T>(self, expr: T) -> SimpleExpr
       where T: Into<SimpleExpr> { ... }
    fn contains<T>(self, expr: T) -> SimpleExpr
       where T: Into<SimpleExpr> { ... }
    fn contained<T>(self, expr: T) -> SimpleExpr
       where T: Into<SimpleExpr> { ... }
    fn ilike<L>(self, like: L) -> SimpleExpr
       where L: IntoLikeExpr { ... }
    fn not_ilike<L>(self, like: L) -> SimpleExpr
       where L: IntoLikeExpr { ... }
}
Available on crate feature backend-postgres only.

Provided Methods§

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fn concatenate<T>(self, right: T) -> SimpleExprwhere T: Into<SimpleExpr>,

Express an postgres concatenate (||) expression.

Examples
use sea_query::{extension::postgres::PgExpr, tests_cfg::*, *};

let query = Query::select()
    .columns([Font::Name, Font::Variant, Font::Language])
    .from(Font::Table)
    .and_where(Expr::val("a").concatenate("b").concat("c").concat("d"))
    .to_owned();

assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"SELECT "name", "variant", "language" FROM "font" WHERE 'a' || 'b' || 'c' || 'd'"#
);
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fn concat<T>(self, right: T) -> SimpleExprwhere T: Into<SimpleExpr>,

Alias of PgExpr::concatenate

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fn matches<T>(self, expr: T) -> SimpleExprwhere T: Into<SimpleExpr>,

Express an postgres fulltext search matches (@@) expression.

Examples
use sea_query::{*, tests_cfg::*, extension::postgres::PgExpr};

let query = Query::select()
    .columns([Font::Name, Font::Variant, Font::Language])
    .from(Font::Table)
    .and_where(Expr::val("a & b").matches("a b"))
    .and_where(Expr::col(Font::Name).matches("a b"))
    .to_owned();

assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"SELECT "name", "variant", "language" FROM "font" WHERE 'a & b' @@ 'a b' AND "name" @@ 'a b'"#
);
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fn contains<T>(self, expr: T) -> SimpleExprwhere T: Into<SimpleExpr>,

Express an postgres fulltext search contains (@>) expression.

Examples
use sea_query::{*, tests_cfg::*, extension::postgres::PgExpr};

let query = Query::select()
    .columns([Font::Name, Font::Variant, Font::Language])
    .from(Font::Table)
    .and_where(Expr::val("a & b").contains("a b"))
    .and_where(Expr::col(Font::Name).contains("a b"))
    .to_owned();

assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"SELECT "name", "variant", "language" FROM "font" WHERE 'a & b' @> 'a b' AND "name" @> 'a b'"#
);
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fn contained<T>(self, expr: T) -> SimpleExprwhere T: Into<SimpleExpr>,

Express an postgres fulltext search contained (<@) expression.

Examples
use sea_query::{*, tests_cfg::*, extension::postgres::PgExpr};

let query = Query::select()
    .columns([Font::Name, Font::Variant, Font::Language])
    .from(Font::Table)
    .and_where(Expr::val("a & b").contained("a b"))
    .and_where(Expr::col(Font::Name).contained("a b"))
    .to_owned();

assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"SELECT "name", "variant", "language" FROM "font" WHERE 'a & b' <@ 'a b' AND "name" <@ 'a b'"#
);
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fn ilike<L>(self, like: L) -> SimpleExprwhere L: IntoLikeExpr,

Express a LIKE expression.

Examples
use sea_query::{*, tests_cfg::*, extension::postgres::PgExpr};

let query = Query::select()
    .columns([Char::Character, Char::SizeW, Char::SizeH])
    .from(Char::Table)
    .and_where(Expr::col((Char::Table, Char::Character)).ilike("Ours'%"))
    .to_owned();

assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"SELECT "character", "size_w", "size_h" FROM "character" WHERE "character"."character" ILIKE E'Ours\'%'"#
);
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fn not_ilike<L>(self, like: L) -> SimpleExprwhere L: IntoLikeExpr,

Express a NOT ILIKE expression

Implementors§