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overlay in datafusion::functions::string::overlay - Rust
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Function datafusion::functions::string::overlay::overlay

source ·
pub fn overlay<T>(
    args: &[Arc<dyn Array>]
) -> Result<Arc<dyn Array>, DataFusionError>
where T: OffsetSizeTrait,
Expand description

OVERLAY(string1 PLACING string2 FROM integer FOR integer2) Replaces a substring of string1 with string2 starting at the integer bit pgsql overlay(‘Txxxxas’ placing ‘hom’ from 2 for 4) → Thomas overlay(‘Txxxxas’ placing ‘hom’ from 2) -> Thomxas, without for option, str2’s len is instead