....................................../////.===Shadow-Here===./////................................................ > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < ------------------------------------------------------------------------------------------------------------------- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////// RIFF¤ WEBPVP8 ˜ ðÑ *ôô>‘HŸK¥¤"§£±¨àð enü¹%½_F‘åè¿2ºQú³íªú`N¿­3ÿƒügµJžaÿ¯ÿ°~¼ÎùnúîÞÖô•òíôÁÉß®Sm¥Ü/ ‡ó˜f£Ùà<˜„xëJ¢Ù€SO3x<ªÔ©4¿+ç¶A`q@Ì“Úñè™ÍÿJÌ´ª-˜ÆtÊÛL]Ïq*‘Ý”ì#ŸÌÏãY]@ê`¿ /ªfkØB4·®£ó z—Üw¥Pxù–ÞLШKÇN¾AkÙTf½è'‰g gÆv›Øuh~ a˜Z— ïj*á¥t d£“uÒ ¨`K˜¹ßþ]b>˜]_ÏÔ6W—è2r4x•íÖ…"ƒÖNîä!¦å Ú}ýxGøÌ —@ ;ÆÚŠ=ɾ1ý8lªË¥ô ^yf®Œ¢u&2©nÙÇ›ñÂñŒ³ aPo['½»øFùà­+4ê“$!lövlüÞ=;N®3ð‚õ›DÉKòÞ>ÄÍ ¥ˆuߤ#ˆ$6ù™¥îŠ‡y’ÍB¼ çxÛ;X"WL£R÷͝*ó-¶Zu}º.s¸sšXqù–DþÿvªhüïwyŸ ¯é³lÀ:KCûÄ£Ëá\…­ ~—ýóî ¼ûûÜTÓüÇy…ŽÆvc»¾×U ñ¸žþоP÷¦ó:Ò¨¨5;Ð#&#ÖúñläÿÁœ GxÉ­/ñ‡áQðìYÉtÒwŽ¼GÔ´zàÒò ð*ëzƒ•4~H]Ø‹f ñÓÈñ`NåWçs'ÆÏW^ø¹!XžµmQ5ÃËoLœÎ: ÞËÍ¥J ù…î èo£ßPÎñ¶ž8.Œ]ʵ~5›ÙË-ù*8ÙÖß±~ ©¹rÓê‚j¶d¸{^Q'˜±Crß ÚH—#¥¥QlÀ×ëã‡DÜ«èî þ&Çæžî;ŽÏºò6ÒLÃXy&ZŒ'j‚¢Ù€IßÚù+–MGi‰*jE€‘JcÜ ÓÌ EÏÚj]o˜ Þr <¾U ûŪæÍ/šÝH¥˜b”¼ ÁñßX GP›ï2›4WŠÏà×£…íÓk†¦H·ÅíMh–*nó÷à]ÁjCº€b7<ب‹¨5車bp2:Á[UªM„QŒçiNMa#<5›áËó¸HýÊ"…×Éw¹¦ì2º–x<›»a±¸3Weü®FÝ⑱ö–î–³|LPÈ~çð~Çå‡|º kD¢µÏàÆAI %1À% ¹Ò – ”ϝS¦‰4&¶£°à Öý”û_Ò Áw°A«Å€?mÇÛgHÉ/8)á¾ÛìáöŽP í¨PŸNÙµº¦‡§Ùš"ÿ«>+ªÕ`Ê÷‡‚ß Õû˜þãÇ-PÍ.¾XV‘€ dÜ"þ4¹ ±Oú‘©t¥¦FªÄÃÄ•b‚znýu½—#cDs˜ÃiÑOˆñ×QO=*IAÊ,¶ŽZƒ;‡wøXè%EÐk:F±Ú” .Ѽ+Áu&Ç`."pÈÉw o&¿dE6‘’EqTuK@Ì¥ã™À(Êk(h‰,H}RÀIXÛš3µ1©_OqÚÒJAñ$ÊÙÜ;D3çŒ[þùœh¬Ã³™ö6ç†NY".Ú‰ï[ªŸŒ '²Ð öø_¨ÂÉ9u鶳ÒŠõTàîMØ#û¯gN‡bÙ놚X„ö …ÉeüÌ^J ‹€.œ$Æ)βÄeæW#óüßĺŸ€ ÀzwV 9oä»f4V*uB «Ë†¹ì¯žR霓æHXa=&“I4K;¯ç‹h×·"UŠ~<•â•ªVêª&ÍSÃÆÅ?ÔqÎ*mTM ˜›µwêd#[C¡©§‘D<©àb†–ÁœøvH/,í:¯( ²£|4-„Æövv„Yͼ™^Á$ˆ„¢Û[6yB.åH*V¨æ?$=˜Ñ€•î¦ñ·­(VlŸ‘ nÀt8W÷´Bûba?q9ú¶Xƒl«ÿ\ù¶’þòUÐj/õ¢Ìµ³g$ƒÎR!¸»|Oߍë’BhîÚÑ¢ñåŒJ„®„£2Ð3•ô02Nt…!£Í]Ïc½Qÿ?ˆ<&ÃA¾Ú,JˆijÌ#5yz„‰Î|ÊŽ5QÏ:‹ÐaóVÔxW—CpeÏzÐïíçôÿÅ_[hãsÐ_/ŽTÝ?BîˆííV$<¿i>²F¬_Eß¿ †bÊŒº­ÿ®Z H“C}”¬,Mp ý/Bá£w>˜YV°aƒúh+cŠ- r/[%|üUMHäQ°X»|û/@|°¥Ð !BÔ Ç¢Ä©š+Õì D«7ìN¶ŽðÔ " ƶ’ÖçtA‰Û×}{tþz­¾GÍ›k¹OEJR$ Â׃ «ëÁ"oÉôž$oUK(Ä)Ãz³Ê-‹êN[Ò3Œñbï8P 4ƒ×q¢bo|?<ÛX¬òÄÍ°L–±›(™ûG?ýË©ÚÄ–ÂDØÐ_Ç¡ô ¾–ÄÏø ×e8Ë©$ÄF¹Å‹ì[©óìl:F¾f´‹‹Xì²ï®\¬ôùƒ ÿat¥óèÒùHß0äe‚;ü×h:ÆWðHž=Ã8骣"kœ'Y?³}Tûè€>?0l›e1Lòñ„aæKÆw…hÖŠùW…ÈÆÄ0ši·›[pcwËþñiêíY/~-Á5˜!¿†A›™Mÿþ(±“t@â“ö2­´TG5yé]çå僳 .·ÍïçÝ7UÚ±Ð/Nè»,_Ï ùdj7\ï Wì4›„»c¸àešg#ÒÊ⥭áØo5‘?ÌdÝô¯ ¹kzsƒ=´#ëÉK›Ø´±-¥eW?‡çßtòTã…$Ý+qÿ±ƒ÷_3Ô¥í÷:æ–ž<·Ö‡‰Å¢ š‡%Ô—utÌÈìðžgÖÀz²À—ï÷Óîäõ{K'´È÷³yaÏÁjƒô}ž§®æÊydÕÈë5¯èˆõvÕ©ã*çD„ “z„Ó‡^^xÂ3M§A´JG‚öï 3W'ˆ.OvXè¡ÊÕª?5º7†˜(˜Ç¶#çê’¶!ÌdZK§æ 0fãaN]òY³RV ™î$®K2R¨`W!1Ôó\;Ý ýB%qæK•&ÓÈe9È0êI±žeŸß -ú@žQr¦ ö4»M¼Áè¹µmw 9 EÆE_°2ó„ŸXKWÁ×Hóì^´²GѝF©óäR†¦‰ç"V»eØ<3ùd3ÿÚ¤Žú“Gi" —‘_ÙËÎ~Üö¯¥½Î»üŸEÚŽåmÞþí ;ÞólËΦMzA"Âf(´òá;Éï(/7½ûñÌ­cïÕçлþÝz¾-ÍvÑ“pH­–ðÓj$¸Äû¤‚‘ãUBË-n“2åPkS5&‹Â|+g^œ®Ì͆d!OïäîU«c;{Û!ÅŽ«ëZ9Ókóˆ]¯ƒ›né `ÇÒ+tÆš (ØKá¾—=3œ®•vuMñg²\ï Ec€ 05±d™‡×iÇ×›UúvÌ¢£Èþ¡ÕØô¶ßÎA"ß±#Ö²ˆÊŸ¦*Ä~ij|àø.-¼'»Ú¥£h ofº¦‡VsR=N½„Î v˜Z*SÌ{=jÑB‹tê…;’HžH¯8–îDù8ñ¢|Q•bÛçš–‹m³“ê¨ åÏ^m¬Žãþ©ïêO‡½6] µÆ„Ooòü ²x}N¦Ë3ïé¿»€›HA˜m%çÞ/¿í7Fø“‹léUk)É°Œµ8Q8›:ÀŠeT*šõ~ôڝG6 ¢}`ùH­–”¡k ‰P1>š†®9z11!X wKfmÁ¦xÑ,N1Q”–æB¶M…ÒÃv6SMˆhU¬ÊPŽï‘öj=·CŒ¯u¹ƒVIЃsx4’ömÛýc塶7ßŠß 57^\wÒÐÆ k§h,Œý î«q^R½3]J¸ÇðN ‚çU¬ôº^Áì} ³f©Õœ§ˆã:FÄÈ‚é(€™?àýÓüè1Gô£¼éj‚OÅñ  #>×—ßtà 0G¥Åa뀐kßhc™À_ÉñÞ#±)GD" YîäË-ÿÙ̪ ¹™a¯´¢E\ÝÒö‚;™„ë]_ p8‰o¡ñ+^÷ 3‘'dT4œŽ ðVë½° :¬víÑ«£tßÚS-3¶“þ2 †üüʨòrš¹M{É_¤`Û¨0ìjœøJ‡:÷ÃáZ˜†@GP&œÑDGÏs¡þ¦þDGú‘1Yá9Ôþ¼ ûø…§÷8&–ÜÑnÄ_m®^üÆ`;ÉVÁJ£?â€-ßê}suÍ2sõA NÌúA磸‘îÿÚ»ƒìö·á¿±tÑÐ"Tÿü˜[@/äj¬€uüªìù¥Ý˜á8Ý´sõj 8@rˆð äþZÇD®ÿUÏ2ùôõrBzÆÏÞž>Ì™xœ“ wiÎ×7_… ¸ \#€MɁV¶¥üÕÿPÔ9Z‡ø§É8#H:ƒ5ÀÝå9ÍIŒ5åKÙŠ÷qÄ>1AÈøžj"µÂд/ªnÀ qªã}"iŸBå˜ÓÛŽ¦…&ݧ;G@—³b¯“•"´4í¨ôM¨åñC‹ïùÉó¯ÓsSH2Ý@ßáM‡ˆKÀªÛUeø/4\gnm¥‹ŸŒ qÄ b9ÞwÒNÏ_4Ég³ú=܆‚´ •â¥õeíþkjz>éÚyU«Íӝ݃6"8/ø{=Ô¢»G¥ äUw°W«,ô—¿ãㆅү¢³xŠUû™yŒ (øSópÐ 9\åTâ»—*oG$/×ÍT†Y¿1¤Þ¢_‡ ¼ „±ÍçèSaÓ 3ÛMÁBkxs‰’R/¡¤ˆÙçª(*õ„üXÌ´ƒ E§´¬EF"Ù”R/ÐNyÆÂ^°?™6¡œïJ·±$§?º>ÖüœcNÌù¯G ‹ñ2ŠBB„^·úìaz¨k:#¨Æ¨8LÎõލ£^§S&cŒÐU€ü(‡F±Š¼&P>8ÙÁ ‰ p5?0ÊƃZl¸aô š¼¡}gÿ¶zÆC²¹¬ÎÖG*HB¡O<º2#ñŒAƒ–¡B˜´É$¥›É:FÀÔx¾u?XÜÏÓvN©RS{2ʈãk9rmP¼Qq̳ è¼ÐFׄ^¡Öì fE“F4A…!ì/…¦Lƒ… … $%´¾yã@CI¬ á—3PþBÏNÿ<ý°4Ü ËÃ#ØÍ~âW«rEñw‹eùMMHß²`¬Öó½íf³:‹k˜¯÷}Z!ã¿<¥,\#öµÀ¯aÒNÆIé,Ћ–lŽ#Àæ9ÀÒS·I’½-Ïp Äz¤Š Â* ­íÄ9­< h>׍3ZkËU¹§˜ŒŠ±f­’¤º³Q ÏB?‹#µíÃ¥®@(Gs«†vI¥Mµ‹Á©e~2ú³ÁP4ìÕi‚²Ê^ö@-DþÓàlÜOÍ]n"µã:žpsŽ¢:! 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Current File : /usr/share/phpmyadmin/libraries/classes/CreateAddField.php
<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * Holds the PhpMyAdmin\CreateAddField class
 *
 * @package PhpMyAdmin
 */
declare(strict_types=1);

namespace PhpMyAdmin;

/**
 * Set of functions for tbl_create.php and tbl_addfield.php
 *
 * @package PhpMyAdmin
 */
class CreateAddField
{
    /**
     * @var DatabaseInterface
     */
    private $dbi;

    /**
     * Constructor
     *
     * @param DatabaseInterface $dbi DatabaseInterface interface
     */
    public function __construct(DatabaseInterface $dbi)
    {
        $this->dbi = $dbi;
    }

    /**
     * Transforms the radio button field_key into 4 arrays
     *
     * @return array An array of arrays which represents column keys for each index type
     */
    private function getIndexedColumns(): array
    {
        $fieldCount = count($_POST['field_name']);
        $fieldPrimary = json_decode($_POST['primary_indexes'], true);
        $fieldIndex = json_decode($_POST['indexes'], true);
        $fieldUnique = json_decode($_POST['unique_indexes'], true);
        $fieldFullText = json_decode($_POST['fulltext_indexes'], true);
        $fieldSpatial = json_decode($_POST['spatial_indexes'], true);

        return [
            $fieldCount,
            $fieldPrimary,
            $fieldIndex,
            $fieldUnique,
            $fieldFullText,
            $fieldSpatial,
        ];
    }

    /**
     * Initiate the column creation statement according to the table creation or
     * add columns to a existing table
     *
     * @param int     $fieldCount    number of columns
     * @param boolean $isCreateTable true if requirement is to get the statement
     *                               for table creation
     *
     * @return array An array of initial sql statements
     *                             according to the request
     */
    private function buildColumnCreationStatement(
        int $fieldCount,
        bool $isCreateTable = true
    ): array {
        $definitions = [];
        $previousField = -1;
        for ($i = 0; $i < $fieldCount; ++$i) {
            // '0' is also empty for php :-(
            if (strlen($_POST['field_name'][$i]) === 0) {
                continue;
            }

            $definition = $this->getStatementPrefix($isCreateTable) .
                    Table::generateFieldSpec(
                        trim($_POST['field_name'][$i]),
                        $_POST['field_type'][$i],
                        $_POST['field_length'][$i],
                        $_POST['field_attribute'][$i],
                        isset($_POST['field_collation'][$i])
                        ? $_POST['field_collation'][$i]
                        : '',
                        isset($_POST['field_null'][$i])
                        ? $_POST['field_null'][$i]
                        : 'NO',
                        $_POST['field_default_type'][$i],
                        $_POST['field_default_value'][$i],
                        isset($_POST['field_extra'][$i])
                        ? $_POST['field_extra'][$i]
                        : false,
                        isset($_POST['field_comments'][$i])
                        ? $_POST['field_comments'][$i]
                        : '',
                        isset($_POST['field_virtuality'][$i])
                        ? $_POST['field_virtuality'][$i]
                        : '',
                        isset($_POST['field_expression'][$i])
                        ? $_POST['field_expression'][$i]
                        : ''
                    );

            $definition .= $this->setColumnCreationStatementSuffix(
                $previousField,
                $isCreateTable
            );
            $previousField = $i;
            $definitions[] = $definition;
        } // end for

        return $definitions;
    }

    /**
     * Set column creation suffix according to requested position of the new column
     *
     * @param int  $previousField previous field for ALTER statement
     * @param bool $isCreateTable true if requirement is to get the statement
     *                            for table creation
     *
     * @return string suffix
     */
    private function setColumnCreationStatementSuffix(
        int $previousField,
        bool $isCreateTable = true
    ): string {
        // no suffix is needed if request is a table creation
        $sqlSuffix = ' ';
        if ($isCreateTable) {
            return $sqlSuffix;
        }

        if ((string) $_POST['field_where'] === 'last') {
            return $sqlSuffix;
        }

        // Only the first field can be added somewhere other than at the end
        if ($previousField == -1) {
            if ((string) $_POST['field_where'] === 'first') {
                $sqlSuffix .= ' FIRST';
            } elseif (! empty($_POST['after_field'])) {
                $sqlSuffix .= ' AFTER '
                        . Util::backquote($_POST['after_field']);
            }
        } else {
            $sqlSuffix .= ' AFTER '
                    . Util::backquote(
                        $_POST['field_name'][$previousField]
                    );
        }

        return $sqlSuffix;
    }

    /**
     * Create relevant index statements
     *
     * @param array   $index         an array of index columns
     * @param string  $indexChoice   index choice that which represents
     *                               the index type of $indexed_fields
     * @param boolean $isCreateTable true if requirement is to get the statement
     *                               for table creation
     *
     * @return array an array of sql statements for indexes
     */
    private function buildIndexStatements(
        array $index,
        string $indexChoice,
        bool $isCreateTable = true
    ): array {
        $statement = [];
        if (! count($index)) {
            return $statement;
        }

        $sqlQuery = $this->getStatementPrefix($isCreateTable)
            . ' ' . $indexChoice;

        if (! empty($index['Key_name']) && $index['Key_name'] != 'PRIMARY') {
            $sqlQuery .= ' ' . Util::backquote($index['Key_name']);
        }

        $indexFields = [];
        foreach ($index['columns'] as $key => $column) {
            $indexFields[$key] = Util::backquote(
                $_POST['field_name'][$column['col_index']]
            );
            if ($column['size']) {
                $indexFields[$key] .= '(' . $column['size'] . ')';
            }
        }

        $sqlQuery .= ' (' . implode(', ', $indexFields) . ')';

        $keyBlockSizes = $index['Key_block_size'];
        if (! empty($keyBlockSizes)) {
            $sqlQuery .= " KEY_BLOCK_SIZE = "
                 . $this->dbi->escapeString($keyBlockSizes);
        }

        // specifying index type is allowed only for primary, unique and index only
        $type = $index['Index_type'];
        if ($index['Index_choice'] != 'SPATIAL'
            && $index['Index_choice'] != 'FULLTEXT'
            && in_array($type, Index::getIndexTypes())
        ) {
            $sqlQuery .= ' USING ' . $type;
        }

        $parser = $index['Parser'];
        if ($index['Index_choice'] == 'FULLTEXT' && ! empty($parser)) {
            $sqlQuery .= " WITH PARSER " . $this->dbi->escapeString($parser);
        }

        $comment = $index['Index_comment'];
        if (! empty($comment)) {
            $sqlQuery .= " COMMENT '" . $this->dbi->escapeString($comment)
                . "'";
        }

        $statement[] = $sqlQuery;

        return $statement;
    }

    /**
     * Statement prefix for the buildColumnCreationStatement()
     *
     * @param boolean $isCreateTable true if requirement is to get the statement
     *                               for table creation
     *
     * @return string prefix
     */
    private function getStatementPrefix(bool $isCreateTable = true): string
    {
        $sqlPrefix = " ";
        if (! $isCreateTable) {
            $sqlPrefix = ' ADD ';
        }
        return $sqlPrefix;
    }

    /**
     * Merge index definitions for one type of index
     *
     * @param array   $definitions    the index definitions to merge to
     * @param boolean $isCreateTable  true if requirement is to get the statement
     *                                for table creation
     * @param array   $indexedColumns the columns for one type of index
     * @param string  $indexKeyword   the index keyword to use in the definition
     *
     * @return array
     */
    private function mergeIndexStatements(
        array $definitions,
        bool $isCreateTable,
        array $indexedColumns,
        string $indexKeyword
    ): array {
        foreach ($indexedColumns as $index) {
            $statements = $this->buildIndexStatements(
                $index,
                " " . $indexKeyword . " ",
                $isCreateTable
            );
            $definitions = array_merge($definitions, $statements);
        }
        return $definitions;
    }

    /**
     * Returns sql statement according to the column and index specifications as
     * requested
     *
     * @param boolean $isCreateTable true if requirement is to get the statement
     *                               for table creation
     *
     * @return string sql statement
     */
    private function getColumnCreationStatements(bool $isCreateTable = true): string
    {
        $sqlStatement = "";
        list(
            $fieldCount,
            $fieldPrimary,
            $fieldIndex,
            $fieldUnique,
            $fieldFullText,
            $fieldSpatial
        ) = $this->getIndexedColumns();
        $definitions = $this->buildColumnCreationStatement(
            $fieldCount,
            $isCreateTable
        );

        // Builds the PRIMARY KEY statements
        $primaryKeyStatements = $this->buildIndexStatements(
            isset($fieldPrimary[0]) ? $fieldPrimary[0] : [],
            " PRIMARY KEY ",
            $isCreateTable
        );
        $definitions = array_merge($definitions, $primaryKeyStatements);

        // Builds the INDEX statements
        $definitions = $this->mergeIndexStatements(
            $definitions,
            $isCreateTable,
            $fieldIndex,
            "INDEX"
        );

        // Builds the UNIQUE statements
        $definitions = $this->mergeIndexStatements(
            $definitions,
            $isCreateTable,
            $fieldUnique,
            "UNIQUE"
        );

        // Builds the FULLTEXT statements
        $definitions = $this->mergeIndexStatements(
            $definitions,
            $isCreateTable,
            $fieldFullText,
            "FULLTEXT"
        );

        // Builds the SPATIAL statements
        $definitions = $this->mergeIndexStatements(
            $definitions,
            $isCreateTable,
            $fieldSpatial,
            "SPATIAL"
        );

        if (count($definitions)) {
            $sqlStatement = implode(', ', $definitions);
        }
        return preg_replace('@, $@', '', $sqlStatement);
    }

    /**
     * Returns the partitioning clause
     *
     * @return string partitioning clause
     */
    public function getPartitionsDefinition(): string
    {
        $sqlQuery = "";
        if (! empty($_POST['partition_by'])
            && ! empty($_POST['partition_expr'])
            && ! empty($_POST['partition_count'])
            && $_POST['partition_count'] > 1
        ) {
            $sqlQuery .= " PARTITION BY " . $_POST['partition_by']
                . " (" . $_POST['partition_expr'] . ")"
                . " PARTITIONS " . $_POST['partition_count'];
        }

        if (! empty($_POST['subpartition_by'])
            && ! empty($_POST['subpartition_expr'])
            && ! empty($_POST['subpartition_count'])
            && $_POST['subpartition_count'] > 1
        ) {
            $sqlQuery .= " SUBPARTITION BY " . $_POST['subpartition_by']
               . " (" . $_POST['subpartition_expr'] . ")"
               . " SUBPARTITIONS " . $_POST['subpartition_count'];
        }

        if (! empty($_POST['partitions'])) {
            $partitions = [];
            foreach ($_POST['partitions'] as $partition) {
                $partitions[] = $this->getPartitionDefinition($partition);
            }
            $sqlQuery .= " (" . implode(", ", $partitions) . ")";
        }

        return $sqlQuery;
    }

    /**
     * Returns the definition of a partition/subpartition
     *
     * @param array   $partition      array of partition/subpartition detiails
     * @param boolean $isSubPartition whether a subpartition
     *
     * @return string partition/subpartition definition
     */
    private function getPartitionDefinition(
        array $partition,
        bool $isSubPartition = false
    ): string {
        $sqlQuery = " " . ($isSubPartition ? "SUB" : "") . "PARTITION ";
        $sqlQuery .= $partition['name'];

        if (! empty($partition['value_type'])) {
            $sqlQuery .= " VALUES " . $partition['value_type'];

            if ($partition['value_type'] != 'LESS THAN MAXVALUE') {
                $sqlQuery .= " (" . $partition['value'] . ")";
            }
        }

        if (! empty($partition['engine'])) {
            $sqlQuery .= " ENGINE = " . $partition['engine'];
        }
        if (! empty($partition['comment'])) {
            $sqlQuery .= " COMMENT = '" . $partition['comment'] . "'";
        }
        if (! empty($partition['data_directory'])) {
            $sqlQuery .= " DATA DIRECTORY = '" . $partition['data_directory'] . "'";
        }
        if (! empty($partition['index_directory'])) {
            $sqlQuery .= " INDEX_DIRECTORY = '" . $partition['index_directory'] . "'";
        }
        if (! empty($partition['max_rows'])) {
            $sqlQuery .= " MAX_ROWS = " . $partition['max_rows'];
        }
        if (! empty($partition['min_rows'])) {
            $sqlQuery .= " MIN_ROWS = " . $partition['min_rows'];
        }
        if (! empty($partition['tablespace'])) {
            $sqlQuery .= " TABLESPACE = " . $partition['tablespace'];
        }
        if (! empty($partition['node_group'])) {
            $sqlQuery .= " NODEGROUP = " . $partition['node_group'];
        }

        if (! empty($partition['subpartitions'])) {
            $subpartitions = [];
            foreach ($partition['subpartitions'] as $subpartition) {
                $subpartitions[] = $this->getPartitionDefinition(
                    $subpartition,
                    true
                );
            }
            $sqlQuery .= " (" . implode(", ", $subpartitions) . ")";
        }

        return $sqlQuery;
    }

    /**
     * Function to get table creation sql query
     *
     * @param string $db    database name
     * @param string $table table name
     *
     * @return string
     */
    public function getTableCreationQuery(string $db, string $table): string
    {
        // get column addition statements
        $sqlStatement = $this->getColumnCreationStatements(true);

        // Builds the 'create table' statement
        $sqlQuery = 'CREATE TABLE ' . Util::backquote($db) . '.'
            . Util::backquote(trim($table)) . ' (' . $sqlStatement . ')';

        // Adds table type, character set, comments and partition definition
        if (! empty($_POST['tbl_storage_engine'])
            && ($_POST['tbl_storage_engine'] != 'Default')
        ) {
            $sqlQuery .= ' ENGINE = ' . $this->dbi->escapeString($_POST['tbl_storage_engine']);
        }
        if (! empty($_POST['tbl_collation'])) {
            $sqlQuery .= Util::getCharsetQueryPart($_POST['tbl_collation']);
        }
        if (! empty($_POST['connection'])
            && ! empty($_POST['tbl_storage_engine'])
            && $_POST['tbl_storage_engine'] == 'FEDERATED'
        ) {
            $sqlQuery .= " CONNECTION = '"
                . $this->dbi->escapeString($_POST['connection']) . "'";
        }
        if (! empty($_POST['comment'])) {
            $sqlQuery .= ' COMMENT = \''
                . $this->dbi->escapeString($_POST['comment']) . '\'';
        }
        $sqlQuery .= $this->getPartitionsDefinition();
        $sqlQuery .= ';';

        return $sqlQuery;
    }

    /**
     * Function to get the number of fields for the table creation form
     *
     * @return int
     */
    public function getNumberOfFieldsFromRequest(): int
    {
        // Limit to 4096 fields (MySQL maximal value)
        $mysqlLimit = 4096;

        if (isset($_POST['submit_num_fields'])) { // adding new fields
            $numberOfFields = intval($_POST['orig_num_fields']) + intval($_POST['added_fields']);
        } elseif (isset($_POST['orig_num_fields'])) { // retaining existing fields
            $numberOfFields = intval($_POST['orig_num_fields']);
        } elseif (isset($_POST['num_fields'])
            && intval($_POST['num_fields']) > 0
        ) { // new table with specified number of fields
            $numberOfFields = intval($_POST['num_fields']);
        } else { // new table with unspecified number of fields
            $numberOfFields = 4;
        }

        return min($numberOfFields, $mysqlLimit);
    }

    /**
     * Function to execute the column creation statement
     *
     * @param string $db       current database
     * @param string $table    current table
     * @param string $errorUrl error page url
     *
     * @return array
     */
    public function tryColumnCreationQuery(
        string $db,
        string $table,
        string $errorUrl
    ): array {
        // get column addition statements
        $sqlStatement = $this->getColumnCreationStatements(false);

        // To allow replication, we first select the db to use and then run queries
        // on this db.
        if (! $this->dbi->selectDb($db)) {
            Util::mysqlDie(
                $this->dbi->getError(),
                'USE ' . Util::backquote($db),
                false,
                $errorUrl
            );
        }
        $sqlQuery = 'ALTER TABLE ' .
            Util::backquote($table) . ' ' . $sqlStatement . ';';
        // If there is a request for SQL previewing.
        if (isset($_POST['preview_sql'])) {
            Core::previewSQL($sqlQuery);
        }
        return [
            $this->dbi->tryQuery($sqlQuery),
            $sqlQuery,
        ];
    }
}

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