Function joinTypePretty

src/Processors/QueryPlan/JoinStepLogical.cpp:237–279

}

std::string_view joinTypePretty(JoinKind join_kind, JoinStrictness strictness)
{
    /*
     * Inner Join: ⋈ (Unicode U+22C8)
     * Left Outer Join: ⟕ (Unicode U+27D5)
     * Right Outer Join: ⟖ (Unicode U+27D6)
     * Full Outer Join: ⟗ (Unicode U+27D7)
     * Semi Join: ⋉ (Unicode U+22C9)
     * Right Semi Join: ⋊ (Unicode U+22CA)
     * Anti Join: ⋉̸ (Unicode U+22C9 U+0338)
     * Right Anti Join: ⋊̸ (Unicode U+22CA U+0338)
     * Cross Join: × (Unicode U+00D7)
     * Paste Join: ⟘ (Unicode U+27D8)
     */

    constexpr auto def_symb = "?";
    auto symbols = std::array{
        ///         Inner     Left            Right           Full      Cross    Comma      Paste
        std::array{"\u22C8", "\u27D5",       "\u27D6",       "\u27D7", "\u00D7", ",",      "\u27D8"},  /// All/Any
        std::array{"\u22C8", "\u22C9",       "\u22CA",       "\u22C8", def_symb, def_symb, def_symb},  /// Semi
        std::array{def_symb, "\u22C9\u0338", "\u22CA\u0338", def_symb, def_symb, def_symb, def_symb},  /// Anti
    };

    size_t row = 0;
    switch (strictness)
    {
        case JoinStrictness::Semi: row = 1; break;
        case JoinStrictness::Anti: row = 2; break;
        default: break;
    }
    size_t col = 0;
    switch (join_kind)
    {
        case JoinKind::Inner: col = 0; break;
        case JoinKind::Left: col = 1; break;
        case JoinKind::Right: col = 2; break;
        case JoinKind::Full: col = 3; break;
        case JoinKind::Cross: col = 4; break;
        case JoinKind::Comma: col = 5; break;
        case JoinKind::Paste: col = 6; break;
    }
    return symbols[row][col];
}

static std::string_view joinTypePretty(const JoinOperator & join_operator)
{