presto-main/src/main/java/io/prestosql/sql/planner/CompilerConfig.java/CompilerConfig/setExpressionCacheSize
class CompilerConfig:    @Config("compiler.expression-cache-size")
    @Description("Reuse compiled expressions across multiple queries")
    public CompilerConfig setExpressionCacheSize(int expressionCacheSize)
    {
        this.expressionCacheSize = expressionCacheSize;
        return this;
    }