pub struct SqlGenerator { /* private fields */ }Expand description
Generates SQL queries from ViewDefinitions.
Implementations§
Source§impl SqlGenerator
impl SqlGenerator
Sourcepub fn with_table_pattern(table_pattern: impl Into<String>) -> Self
pub fn with_table_pattern(table_pattern: impl Into<String>) -> Self
Create a new SQL generator with a custom base-table alias.
Sourcepub fn with_dialect(self, dialect: Dialect) -> Self
pub fn with_dialect(self, dialect: Dialect) -> Self
Select the SQL dialect for the generated SELECT query. Defaults to
Dialect::Postgres. Dialect::Ansi is treated as Postgres.
Sourcepub fn with_row_filter(self, filter: Option<String>) -> Self
pub fn with_row_filter(self, filter: Option<String>) -> Self
Set the row-status predicate. {base} is replaced with the base alias.
Pass None to emit no row filter (useful for plain tables that have no
status column).
Sourcepub fn generate(&self, view: &ViewDefinition) -> Result<GeneratedSql, Error>
pub fn generate(&self, view: &ViewDefinition) -> Result<GeneratedSql, Error>
Generate SQL from a ViewDefinition.
§Errors
Returns an error if a FHIRPath selector cannot be parsed or lowered, if a
referenced constant is undefined, or if the view’s column shape is
inconsistent across unionAll branches.
Trait Implementations§
Auto Trait Implementations§
impl Freeze for SqlGenerator
impl RefUnwindSafe for SqlGenerator
impl Send for SqlGenerator
impl Sync for SqlGenerator
impl Unpin for SqlGenerator
impl UnsafeUnpin for SqlGenerator
impl UnwindSafe for SqlGenerator
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